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      Follow the quirky agents of the NCIS -- the Naval Criminal Investigative Service – as they track down terrorists and other high-profile criminals.
      Starring:Mark Harmon, David McCallum, Pauley Perrette
      Creators:Donald P. Bellisario, Don McGill
      Watch all you want for free.

      Watch the Series

      This long-running crime drama eventually became the most-watched scripted series on American TV.



      Watch See No Evil. Episode 1 of Season 2.

      When the wife and blind 9-year-old daughter of a Navy captain are kidnapped, Gibbs and his team face a unique challenge.

      Watch The Good Wives Club. Episode 2 of Season 2.

      The team is called in to investigate when the decomposed body of a woman in a wedding dress is found in a cell beneath abandoned military housing.

      Watch Vanished. Episode 3 of Season 2.

      The NCIS team is called in to investigate when a perfectly functioning Marine helicopter is found in the middle of a crop circle.

      Watch Lt. Jane Doe. Episode 4 of Season 2.

      When a woman dressed in a Navy uniform is found raped and murdered, Ducky spots a connection to an old case.

      Watch The Bone Yard. Episode 5 of Season 2.

      When the NCIS team finds the remains of an undercover FBI agent on a Marine firing range, they suspect they've stumbled onto a Mafia dumping ground.

      Watch Terminal Leave. Episode 6 of Season 2.

      The NCIS team is at odds with an FBI agent while trying to protect an Iraq War veteran and her family from a group of terrorists.

      Watch Call of Silence. Episode 7 of Season 2.

      Gibbs and his team must clear the name of an elderly Marine who confesses that he murdered his best friend nearly 60 years ago.

      Watch Heart Break. Episode 8 of Season 2.

      Gibbs and his team investigate the mysterious death of a Navy commander who, after successful open heart surgery, seemingly bursts into flames.

      Watch Forced Entry. Episode 9 of Season 2.

      Gibbs and his team are called to the scene when a Marine's wife kills an intruder who tried to rape her.

      Watch Chained. Episode 10 of Season 2.

      The team must work together to find Tony when he disappears during an undercover operation posing as an escaped convict.

      Watch Black Water. Episode 11 of Season 2.

      When the body of a missing Navy officer is dredged up from a lake, the NCIS team must determine whether the death was an accident or foul play.

      Watch Doppelganger. Episode 12 of Season 2.

      When a telemarketer overhears a murder while making a call, the NCIS team works with local homicide detectives find out who wanted the victim dead.

      Watch The Meat Puzzle. Episode 13 of Season 2.

      As he reassembles the pieces of three bodies found stuffed in barrels months ago, Ducky is shocked when he discovers their identities.

      Watch Witness. Episode 14 of Season 2.

      Gibbs gives McGee a shot at running a case when the NCIS team investigates a woman's claim that she witnessed the murder of a sailor.

      Watch Caught on Tape. Episode 15 of Season 2.

      The NCIS team investigates when a Marine records his own murder on video as he falls off a cliff.

      Watch Pop Life. Episode 16 of Season 2.

      The NCIS team investigates the bizarre death of a female petty officer who is found brutally murdered in the bed of a dance club bartender.

      Watch An Eye for an Eye. Episode 17 of Season 2.

      The NCIS team investigates when a sailor in Washington, D.C., receives a package from Paraguay containing a pair of blue eyeballs.

      Watch Bikini Wax. Episode 18 of Season 2.

      The NCIS team investigates when a petty officer who recently returned from duty is found dead backstage at a local bikini contest.

      Watch Conspiracy Theory. Episode 19 of Season 2.

      The NCIS team investigates when a petty officer commits suicide after being institutionalized for a nervous breakdown.

      Watch Red Cell. Episode 20 of Season 2.

      Gibbs and the team head back to school when a Marine in an ROTC program is found murdered on a college campus.

      Watch Hometown Hero. Episode 21 of Season 2.

      Gibbs and the team work to clear the name of a Navy medic killed in Iraq who was suspected of committing a murder in his hometown.

      Watch S.W.A.K.. Episode 22 of Season 2.

      When a letter sealed with a kiss is delivered to NCIS, Tony assumes it's for him and opens it, releasing a mysterious powder into the squad room.

      Watch Twilight. Episode 23 of Season 2.

      NCIS pays the ultimate price when a hunt for a terrorist assassination team turns deadly for one team member.

      Watch Bury Your Dead. Episode 1 of Season 5.

      The final showdown between the NCIS team and an elusive arms dealer reaches an explosive and deadly conclusion.

      Watch Family. Episode 2 of Season 5.

      While examining the body of a hit-and-run victim, Ducky makes a shocking discovery that leads to a search for a missing child.

      Watch Ex-File. Episode 3 of Season 5.

      Gibbs and Lt. Col. Mann unite for a joint investigation into the murder of a Marine captain who had access to highly classified information.

      Watch Identity Crisis. Episode 4 of Season 5.

      While demonstrating an autopsy on an anonymous cadaver, Ducky finds evidence of murder and a connection to a criminal mastermind.

      Watch Leap of Faith. Episode 5 of Season 5.

      When the team tries to talk a distraught naval officer down from a rooftop, what starts out as a suicide attempt turns into a murder investigation.

      Watch Chimera. Episode 6 of Season 5.

      The team is put in mortal danger while investigating a mysterious death on a naval research ship that's been abandoned in the middle of the ocean.

      Watch Requiem. Episode 7 of Season 5.

      When Gibbs agrees to help his deceased daughter's childhood friend, he finds himself at the center of an emotional journey into his past.

      Watch Designated Target. Episode 8 of Season 5.

      The team's investigation into the assassination of a Navy admiral takes an unexpected turn when they meet a woman searching for her missing husband.

      Watch Lost & Found. Episode 9 of Season 5.

      During a forensics lab tour, the team learns that one of McGee's Youth Rangers was abducted and has been missing for years.

      Watch Corporal Punishment. Episode 10 of Season 5.

      The NCIS team pays a heavy price when they try to track down a delusional Marine who escaped from a psychiatric ward.

      Watch Tribes. Episode 11 of Season 5.

      When a Muslim Marine is found dead near a mosque, NCIS suspects murder, but the autopsy is delayed for religious reasons.

      Watch Stakeout. Episode 12 of Season 5.

      When high-tech naval radar goes missing, the NCIS team stakes out a warehouse to catch a suspected thief -- but witnesses a murder instead.

      Watch Dog Tags. Episode 13 of Season 5.

      When a Navy dog handler is found mauled to death, the team needs to determine if his dog is the killer or the victim of a canine framing.

      Watch Internal Affairs. Episode 14 of Season 5.

      When the dead body of arms dealer La Grenouille surfaces, the NCIS team is put under investigation for his murder by the FBI.

      Watch In the Zone. Episode 15 of Season 5.

      When a mortar attack in Baghdad turns into a murder investigation, two members of the NCIS team are sent to Iraq to solve the case.

      Watch Recoil. Episode 16 of Season 5.

      Ziva's undercover assignment takes a shocking and deadly turn when the serial killer she has been tracking becomes suspicious of her.

      Watch About Face. Episode 17 of Season 5.

      After coming face-to-face with an evasive killer and his gun, Palmer suffers a trauma-induced memory block and can't seem to identify the shooter.

      Watch Judgment Day: Part 1. Episode 18 of Season 5.

      A former NCIS agent is found dead. Suicide is the suspected cause of death -- until Jenny finds evidence of murder.

      Watch Judgment Day: Part 2. Episode 19 of Season 5.

      The team mourns the loss of one of their own, and their lives are on the line when Jenny's history with the deceased comes back with a vengeance.

      Watch Kill Ari: Part 1. Episode 1 of Season 3.

      As the season opens, the NCIS team is struggling to deal with Kate Todd's death, and Gibbs is determined to seek out and destroy her killer.

      Watch Kill Ari: Part 2. Episode 2 of Season 3.

      The man responsible for Kate's death is playing terror games with members of the NCIS team, strengthening Gibbs's resolve to find and kill him.

      Watch Mind Games. Episode 3 of Season 3.

      A serial killer Gibbs arrested years ago turns out to have an accomplice, which is all the more alarming when Agent Cassidy goes missing.

      Watch Silver War. Episode 4 of Season 3.

      A dead Marine found inside a Civil War-era tomb at the Smithsonian appears to have been buried alive. Meanwhile, Ziva must prove her worth.

      Watch Switch. Episode 5 of Season 3.

      When the team investigates the murder of a petty officer gunned down on the freeway, they discover someone stole the officer's identity.

      Watch The Voyeur's Web. Episode 6 of Season 3.

      A Marine sergeant's wife who runs a live sex website suddenly vanishes, and preliminary evidence suggests that her murder was broadcast online.

      Watch Honor Code. Episode 7 of Season 3.

      While investigating the kidnapping of a lieutenant commander who had been working on a classified project, the team looks after his young son.

      Watch Under Covers. Episode 8 of Season 3.

      When two married assassins who were planning a hit at a Marine Corps ball die in an accident, Tony and Ziva pose as the couple to investigate further.

      Watch Frame-Up. Episode 9 of Season 3.

      When body parts are found on a Marine base and all evidence suggests that Tony is the murderer, the NCIS team frantically works to clear his name.

      Watch Probie. Episode 10 of Season 3.

      When McGee shoots an undercover detective in an alley, Gibbs wonders about the detective's reason for being there in the first place.

      Watch Model Behavior. Episode 11 of Season 3.

      Soon after a supermodel dies of an overdose on a Marine base where she was filming a reality TV show, the team is perplexed by two related cases.

      Watch Boxed In. Episode 12 of Season 3.

      During a search for illegal weapons in a naval shipyard, Tony and Ziva get ambushed and find themselves locked inside a container.

      Watch Deception. Episode 13 of Season 3.

      The team looks into the abduction of a Navy officer in charge of a nuclear weapons shipment, learning she also worked to combat online pedophilia.

      Watch Light Sleeper. Episode 14 of Season 3.

      When two Marine wives, both Korean-born, are found murdered, the NCIS team investigates and discovers ties to a sleeper cell and North Korea.

      Watch Head Case. Episode 15 of Season 3.

      When a human head is found, Abby traces it to a deceased Navy captain, only to learn that the ashes in his family's possession aren't really his.

      Watch Family Secret. Episode 16 of Season 3.

      While the team is investigating the bizarre explosion of an ambulance carrying the body of a young Marine, Ducky makes a startling discovery.

      Watch Ravenous. Episode 17 of Season 3.

      A Navy petty officer appears to have been eaten by a bear but is found to have had a prior stab wound. And things only get more bizarre from there.

      Watch Bait. Episode 18 of Season 3.

      A high school student enters his classroom with a bomb strapped to his body and takes everyone hostage, demanding that his mother be brought to him.

      Watch Iced. Episode 19 of Season 3.

      A dead Marine is found in a frozen pond, but the mystery only deepens when the bodies of three prominent South American gang members surface.

      Watch Untouchable. Episode 20 of Season 3.

      The shooting death of a Pentagon cryptographer appears to be an at-home suicide until Abby learns that someone was with her at the time of death.

      Watch Bloodbath. Episode 21 of Season 3.

      A couple checking into a motel room find bloodstains and human tissue. Meanwhile, the detectives dig into Abby's past to find out who's stalking her.

      Watch Jeopardy. Episode 22 of Season 3.

      The NCIS team must race to locate Shepherd when a suspect in a drug bust dies in Ziva's custody and the man's brother takes Shepherd hostage.

      Watch Hiatus: Part 1. Episode 23 of Season 3.

      Gibbs is hurt in a terrorist explosion and winds up in a coma, during which he has flashbacks of his family's murder and his Desert Storm injury.

      Watch Hiatus: Part 2. Episode 24 of Season 3.

      When Gibbs wakes from a coma with memory loss, the team rushes to help him recall the details of an impending terrorist attack.

      Watch Yankee White. Episode 1 of Season 1.

      Investigating a Secret Service agent's death aboard Air Force One leads Gibbs and the team to uncover a terrorist's scheme.

      Watch Hung Out to Dry. Episode 2 of Season 1.

      When a Marine corporal formerly known for his lucky streak parachutes violently to his death, the agents investigate the men in his unit.

      Watch Seadog. Episode 3 of Season 1.

      After a Navy commander's body washes ashore, NCIS must investigate a possible link to two murdered drug runners nearby.

      Watch The Immortals. Episode 4 of Season 1.

      A sailor's drowning death points to suicide, but Kate doesn't buy it. Meanwhile, Abby uncovers a link between his ship's crew and a video game.

      Watch The Curse. Episode 5 of Season 1.

      The body of a Navy officer who vanished in 1994 -- along with $1.2 million -- is discovered in a cargo pod, but the money is nowhere to be found.

      Watch High Seas. Episode 6 of Season 1.

      Two crewmen on a ship overdose on meth but insist they don't use, so Gibbs, Tony and Kate board the carrier to unravel the mystery.

      Watch Sub Rosa. Episode 7 of Season 1.

      When an ecoterrorist cell targets a submarine with an inside job, Gibbs and the team must determine which crew member is the cell's plant.

      Watch Minimum Security. Episode 8 of Season 1.

      A sailor's death from ingesting emeralds leads the agents to Guantanamo Bay, where they must thwart a terrorist's plot to kill one of his own.

      Watch Marine Down. Episode 9 of Season 1.

      A Marine killed on a covert CIA mission apparently phones his wife, forcing NCIS to determine whether his death -- or the call -- was a hoax.

      Watch Left for Dead. Episode 10 of Season 1.

      A woman who's been buried alive emerges from a shallow grave with no memory of who she is, but certain a bomb is going to detonate on a Navy ship.

      Watch Eye Spy. Episode 11 of Season 1.

      After a CIA employee witnesses the murder of a Navy lieutenant who was testing a high-tech device, the agents try to determine why he was killed.

      Watch My Other Left Foot. Episode 12 of Season 1.

      When a severed leg with a Semper Fi tattoo is found, the agents try to identify who the limb belongs to, leading to a case from two years earlier.

      Watch One Shot, One Kill. Episode 13 of Season 1.

      When a sniper kills two Marine recruiters, the agents must find the culprit before he strikes again.

      Watch The Good Samaritan. Episode 14 of Season 1.

      With no apparent suspects or motive, the agents struggle to determine why a serial killer is targeting the officers at a naval base.

      Watch Enigma. Episode 15 of Season 1.

      When his former commanding officer goes AWOL from Iraq, Gibbs must clear him of absconding with millions of dollars.

      Watch Bête Noire. Episode 16 of Season 1.

      When a gun-toting terrorist takes Ducky, Gerald and Kate hostage, Gibbs and Tony must determine the man's ties and thwart his efforts.

      Watch The Truth Is Out There. Episode 17 of Season 1.

      A petty officer's death at a rave leads the agents into an investigation that points to possible kickbacks, a femme fatale and practical jokes.

      Watch Unsealed. Episode 18 of Season 1.

      When a former Navy SEAL convicted of murdering his wife escapes from Leavenworth, the agents must track him down before he seeks deadly vengeance.

      Watch Dead Man Talking. Episode 19 of Season 1.

      When a fellow NCIS agent is murdered while investigating a cold case, the team vows to solve the mystery and catch his killer.

      Watch Missing. Episode 20 of Season 1.

      The case of a missing Marine leads Gibbs, Tony and Kate to discover that a serial killer is on the loose.

      Watch Split Decision. Episode 21 of Season 1.

      A Marine's gruesome death leads the agents to a Marine base boxing ring, an agency sting and a black market for assault weapons.

      Watch A Weak Link. Episode 22 of Season 1.

      When a Navy SEAL dies while training for a critical mission, the agents have less than 48 hours to find his killer or the operation could be stalled.

      Watch Reveille. Episode 23 of Season 1.

      The Hamas operative who held some of the team hostage months earlier resurfaces to kidnap Kate and shoot down the president's helicopter.

      Watch Shalom. Episode 1 of Season 4.

      The NCIS team must learn to work without Gibbs when Ziva is wanted by the FBI after she inadvertently witnesses a political assassination.

      Watch Escaped. Episode 2 of Season 4.

      When Fornell is threatened by an escaped convict, Agent Gibbs returns to the NCIS team to investigate the convict's case history.

      Watch Singled Out. Episode 3 of Season 4.

      When a Navy lieutenant's bloody car is discovered, the team goes undercover to shed light on the missing woman's search for a perfect man.

      Watch Faking It. Episode 4 of Season 4.

      A routine traffic stop gets complicated when the Russian driver turns out to be connected to Homeland Security and one of Mike Franks's old cases.

      Watch Dead And Unburied. Episode 5 of Season 4.

      A lance corporal bound for Iraq turns up dead in a vacant house. NCIS discovers the victim was first buried, then exhumed - and he had two fiancées.

      Watch Witch Hunt. Episode 6 of Season 4.

      Aside from being shocked by Abby's Halloween costume, the team investigates a ransom case involving a Marine's daughter and a nasty divorce.

      Watch Sandblast. Episode 7 of Season 4.

      Navy and Army investigators team up to hunt clues in a suspected terrorist attack, but a CIA lead sends them to a warehouse rigged to explode.

      Watch Once A Hero. Episode 8 of Season 4.

      When a decorated Marine veteran's apparent suicide is clouded by suspicious circumstances, Gibbs makes it his mission to restore the man's honor.

      Watch Twisted Sister. Episode 9 of Season 4.

      When his sister shows up on his doorstep bloodied and disoriented, McGee breaks NCIS protocol and risks his job with an independent investigation.

      Watch Smoked. Episode 10 of Season 4.

      The NCIS team must partner with the FBI when a suspected serial killer's body is found charred and mummified inside a Marine base furnace.

      Watch Driven. Episode 11 of Season 4.

      The team inspects a robotic, self-driving vehicle named Otto, in which a Navy lieutenant is found dead. Was it suicide or sabotage?

      Watch Suspicion. Episode 12 of Season 4.

      When the body of a high-level Marine intelligence officer turns up dead in a small town motel, NCIS must step on local toes to uncover the killer.

      Watch Sharif Returns. Episode 13 of Season 4.

      Wanted terrorist Mamoun Sharif is on the loose with a highly toxic chemical weapon, and NCIS must track him down before he strikes.

      Watch Blowback. Episode 14 of Season 4.

      When the Navy's top secret weapon system is stolen, the team yanks Ducky out of the autopsy room, sending him undercover to thwart an arms deal.

      Watch Friends And Lovers. Episode 15 of Season 4.

      A young sailor's body is found in a squalid section of town and while it appears to be suicide, the team uncovers evidence pointing to murder.

      Watch Dead Man Walking. Episode 16 of Season 4.

      When a Navy lieutenant working for the International Atomic Energy Agency contracts radiation poisoning, NCIS suspects foul play by an insider.

      Watch Skeletons. Episode 17 of Season 4.

      An explosion at a military cemetery opens a crypt full of dismembered bodies; Gibbs and team must inform the victims’ families and solve the crime.

      Watch Iceman. Episode 18 of Season 4.

      A frozen Marine regains consciousness on Ducky’s autopsy table, so the team retraces his steps, uncovering a secret Baghdad trip and a link to Gibbs.

      Watch Grace Period. Episode 19 of Season 4.

      An NCIS tip line call turns out to be a trap, killing two agents. Feeling personally responsible, Agent Paula Cassidy steps up to help investigate.

      Watch Cover Story. Episode 20 of Season 4.

      When a petty officer who served as a model for one of McGee's latest book characters is murdered, all eyes turn to the horrified author for clues.

      Watch Brothers In Arms. Episode 21 of Season 4.

      Director Shepard's informant meeting goes awry when her contact is killed, leading Gibbs to intervene in Shepard's chase after their nemesis.

      Watch In The Dark. Episode 22 of Season 4.

      A blind photographer's unique, non-sighted senses help track a petty officer's killer; meanwhile, Gibbs and Tony deal with commitment issues.

      Watch Trojan Horse. Episode 23 of Season 4.

      Turning away from a pile of bureaucratic paperwork, acting director Gibbs leaps on the case of a man found dead in a taxi bound for NCIS headquarters.

      Watch Angel Of Death. Episode 24 of Season 4.

      Gibbs and his NCIS agents reluctantly reveal their most carefully guarded secrets during a round of Homeland Security polygraph tests.

      Watch Nature of the Beast. Episode 1 of Season 9.

      After spending months tracking down his target, Tony is left with the blood of an NCIS agent on his hands, and it's up to Gibbs to help him.

      Watch Restless. Episode 2 of Season 9.

      The NCIS team uncovers a startling surprise after a young Marine shows up to his homecoming party with a fatal stab wound.

      Watch The Penelope Papers. Episode 3 of Season 9.

      The line between McGee's personal and professional life is blurred when NCIS uncovers a connection between his grandmother and a lieutenant's murder.

      Watch Enemy on the Hill. Episode 4 of Season 9.

      The team searches for the person and motive behind a contract killer targeting a Navy lieutenant commander. Abby uncovers new info about her family.

      Watch Safe Harbor. Episode 5 of Season 9.

      When a Coast Guard officer is gunned down on a cargo vessel, the NCIS team searches for the killer but finds something else.

      Watch Thirst. Episode 6 of Season 9.

      An NCIS case changes from accidental death to murder when evidence reveals that a Navy lieutenant died of forced over-hydration.

      Watch Devil's Triangle. Episode 7 of Season 9.

      The NCIS team searches for answers when the current husband of both Gibbs's and Fornell's ex-wife is suspiciously kidnapped.

      Watch Engaged: Part 1. Episode 8 of Season 9.

      The NCIS team uncovers a discrepancy with DNA remains when investigating the crash of a military plane that had been transporting caskets.

      Watch Engaged: Part 2. Episode 9 of Season 9.

      As the NCIS team continues its search for a missing Marine, Gibbs and Ziva travel to her last known whereabouts in Afghanistan.

      Watch Sins of the Father. Episode 10 of Season 9.

      After Anthony DiNozzo Sr. is found with a dead body in his trunk and no memory of the previous night, NCIS must figure out if he is capable of murder.

      Watch Newborn King. Episode 11 of Season 9.

      When a Navy captain is killed in a hotel room, NCIS must track down and protect his pregnant companion from unknown assailants.

      Watch Housekeeping. Episode 12 of Season 9.

      The investigation into the murder of a Navy commander leads the NCIS team to E.J. Barrett's whereabouts and a new probe into Agent Stratton.

      Watch A Desperate Man. Episode 13 of Season 9.

      When a Navy lieutenant is found dead in a building under construction, NCIS searches for a killer while dealing with her distraught detective husband.

      Watch Life Before His Eyes. Episode 14 of Season 9.

      During a routine stop for his morning coffee, Gibbs finds himself staring down the barrel of a gun, forcing him to question choices he has made.

      Watch Secrets. Episode 15 of Season 9.

      When a Navy captain is found dead wearing an unusual costume, NCIS uncovers a secret society of real-life superheroes and must track down the villain.

      Watch Psych Out. Episode 16 of Season 9.

      When a Navy psychologist is found dead, Gibbs goes face-to-face with Dr. Samantha Ryan of Psy Ops to uncover the truth behind the suspected suicide.

      Watch Need to Know. Episode 17 of Season 9.

      Top-secret clearance from a research laboratory is jeopardized when the murder of a chief petty officer is connected to an international arms dealer.

      Watch The Tell. Episode 18 of Season 9.

      The secretary of the Navy partners Gibbs with Dr. Samantha Ryan after top secret information is leaked by someone on the inside.

      Watch The Good Son. Episode 19 of Season 9.

      Director Vance's brother-in-law is the lead suspect when Gibbs and the NCIS team investigate the murder of a petty officer.

      Watch The Missionary Position. Episode 20 of Season 9.

      Following the murder of a Marine, Tony and Ziva join Ziva's mentor in Colombia in a search for a missing Marine lieutenant and Navy chaplain.

      Watch Rekindled. Episode 21 of Season 9.

      After a warehouse fire reveals missing Navy documents, posing a potential threat to national security, NCIS joins the Baltimore P.D. investigation.

      Watch Playing with Fire. Episode 22 of Season 9.

      The NCIS investigation of a fire on a Navy vessel leads to elevated security at all U.S. Navy facilities worldwide. DiNozzo and Ziva travel to Italy.

      Watch Up In Smoke. Episode 23 of Season 9.

      NCIS analyzes what secrets could be in the hands of a terrorist targeting the Navy when a high-tech bug is found inside a probationary agent's tooth.

      Watch Till Death Do Us Part. Episode 24 of Season 9.

      Terrorism threatens to shake the foundations of the Navy and NCIS, as the team struggles to capture the newest member of the NCIS Most Wanted Wall.

      Watch Rogue. Episode 1 of Season 14.

      A deadly car explosion appears to be connected to an NCIS agent who disappeared during an undercover assignment in Argentina.

      Watch Being Bad. Episode 2 of Season 14.

      A brawl at a high school reunion culminates in the accidental death of one of the fighters, and the discovery of bombs in his locker.

      Watch Privileged Information. Episode 3 of Season 14.

      A Marine sergeant is in critical condition following a fall, and her psychiatrist tells Gibbs to investigate the case as an attempted murder.

      Watch Love Boat. Episode 4 of Season 14.

      Gibbs, Quinn and Palmer investigate the death of a Navy lieutenant on a destroyer during a tiger cruise, when civilian guests are allowed aboard.

      Watch Philly. Episode 5 of Season 14.

      Quinn and Bishop are sent to Philadelphia to investigate the connection between a missing MI6 officer and a murdered naval petty officer.

      Watch Shell Game. Episode 6 of Season 14.

      After a kidnapped naval petty officer escapes her captor, NCIS begins to suspect the involvement of her missing husband in her abduction.

      Watch Home of the Brave. Episode 7 of Season 14.

      The NCIS team tussles with a U.S. Immigration official over a key witness in a murder investigation who is about to be deported.

      Watch Pay to Play. Episode 8 of Season 14.

      The NCIS team investigates a series of escalating threats against a congresswoman who has made enemies on both sides of the political fence.

      Watch Enemy Combatant. Episode 9 of Season 14.

      Bishop is sent to Gitmo to investigate the death of a Muslim naval chaplain who had once been involved with the detention camp's inmates.

      Watch Keep Going. Episode 10 of Season 14.

      A hit-and-run investigation is complicated by Palmer's attempt to keep the victim's son from jumping off a building's ledge.

      Watch The Tie That Binds. Episode 11 of Season 14.

      Evidence from the murder of a Navy captain who was under internal investigation appears to point to the address of Ducky's deceased mother.

      Watch Willoughby. Episode 12 of Season 14.

      NCIS scrambles for leads after an operation to apprehend a businessman suspected of using terror to manipulate the stock market is compromised.

      Watch Off the Grid. Episode 13 of Season 14.

      The NCIS team jumps into action to track down Gibbs after he decides to independently resurrect an old undercover investigation.

      Watch Nonstop. Episode 14 of Season 14.

      The murder of a petty officer leads to a collaboration between NCIS and "The Sherlocks," a privately funded investigative team.

      Watch A Many Splendored Thing. Episode 15 of Season 14.

      An official of the Defence Logistics Agency is commanded to kill herself. Reeves and Bishop follow new leads in the Chen case.

      Watch Pandora’s Box, Part I. Episode 16 of Season 14.

      Abby is arrested after a terror simulation in which she's participating for a homeland security think tank is compromised.

      Watch What Lies Above. Episode 17 of Season 14.

      McGee finds two intruders in his apartment. Congresswoman Flemming tries to persuade Director Vance to pursue a career in politics.

      Watch M.I.A.. Episode 18 of Season 14.

      To carry out a sailor's dying wish, the NCIS team reopens an investigation into a case that was originally ruled an accidental death.

      Watch The Wall. Episode 19 of Season 14.

      The NCIS team investigates after a marine drops dead at an event for a group that arranges free tours of war memorials for veterans.

      Watch A Bowl of Cherries. Episode 20 of Season 14.

      The NCIS team is forced to hunt for the creator of a ransomware virus that has taken over the agency's computers and smartphones.

      Watch One Book, Two Covers. Episode 21 of Season 14.

      The murder of a Marine appears to be linked to a former dirt bike gang that Torres had once infiltrated in order to investigate.

      Watch Beastmaster. Episode 22 of Season 14.

      The murder of a Marine sergeant in a national park appears to be only one of a series of related crimes in the same area.

      Watch Something Blue. Episode 23 of Season 14.

      The NCIS team travels out to sea after a young petty officer aboard a destroyer is found dead. McGee's fiancée, Delilah, is rushed to the hospital.

      Watch Rendezvous. Episode 24 of Season 14.

      Gibbs, McGee and Torres travel to a dangerous part of Paraguay after the body parts of missing Navy SEALs turn up in the area.

      Watch Extreme Prejudice. Episode 1 of Season 10.

      As the team copes with the aftermath of the bombing, they are directed to find and terminate with extreme prejudice the terrorist responsible.

      Watch Recovery. Episode 2 of Season 10.

      The body of an NCIS employee turns up four months after a bombing, and each member of the team is required to undergo psychological evaluation.

      Watch Phoenix. Episode 3 of Season 10.

      Ducky revisits a case he worked years previously and uncovers a link to the team’s current investigation into the death of a Marine.

      Watch Lost At Sea. Episode 4 of Season 10.

      When the crew of a helicopter that crashed at sea washes ashore days later, the NCIS team is charged with investigating the accident.

      Watch The Namesake. Episode 5 of Season 10.

      While looking into the murder of a Navy officer, the team uncovers a link to a Medal of Honor recipient who was also a close friend of Gibbs’s father.

      Watch Shell Shock: Part 1. Episode 6 of Season 10.

      While investigating the brutal death of an officer, Gibbs discovers the chief witness suffers from post-traumatic stress disorder.

      Watch Shell Shock: Part 2. Episode 7 of Season 10.

      Gibbs continues helping a Marine who suffers from post-traumatic stress disorder as the team works to thwart a domestic terrorist.

      Watch Gone. Episode 8 of Season 10.

      Gibbs appeals to a former contact for help locating a kidnapped girl, while Abby and Ziva work with the girl’s young friend who witnessed the crime.

      Watch Devil's Trifecta. Episode 9 of Season 10.

      Gibbs and FBI Agent T.C. Fornell hunt for a shooter who tried to take out Fornell -- but their mutual ex-wife, Diane Sterling, gets involved.

      Watch You Better Watch Out. Episode 10 of Season 10.

      The Christmas spirit is tempered when the NCIS team begins a murder investigation that leads them to a mysterious hoard of cash.

      Watch Shabbat Shalom. Episode 11 of Season 10.

      As the team works to solve a murder involving a petty officer and a journalist, Ziva's father -- the director of Mossad -- pays her a surprise visit.

      Watch Shiva. Episode 12 of Season 10.

      Ziva buries her father as the team hunts down the hit man -- and the person who hired him -- responsible for the shootings at Vance's home.

      Watch Hit And Run. Episode 13 of Season 10.

      Abby encounters some troubling flashbacks to her childhood when the NCIS team takes a case involving a Marine and a deadly car crash.

      Watch Canary. Episode 14 of Season 10.

      Gibbs and his team apprehend a notorious cyberterrorist but soon discover that his reach extends much further than they realized.

      Watch Hereafter. Episode 15 of Season 10.

      Investigating the sudden death of a Marine, the NCIS team follows the clues to an underground fight club. Meanwhile, Vance learns some shocking news.

      Watch Detour. Episode 16 of Season 10.

      Kidnappers seize Ducky and Palmer while they are transporting the body of an officer who committed suicide back to NCIS headquarters.

      Watch Prime Suspect. Episode 17 of Season 10.

      Gibbs's barber suspects his own son may be involved in a murder, and the NCIS team suspects a Marine may have stolen a small fortune from the Navy.

      Watch Seek. Episode 18 of Season 10.

      The wife of a dead Marine dog handler suspects a more sinister truth, and she asks Gibbs and his team to investigate.

      Watch Squall. Episode 19 of Season 10.

      After a medical officer is murdered aboard a Navy vessel during a storm, the team uncovers a host of suspects -- including McGee's estranged father.

      Watch Chasing Ghosts. Episode 20 of Season 10.

      The team looks into the plight of a Navy reservist whose husband has disappeared, and Tony worries that Ziva is planning to avenge her father's death.

      Watch Berlin. Episode 21 of Season 10.

      NCIS gets involved when a Massad officer causes trouble in Virginia, and Tony and Ziva head to Berlin to track the killer of Ziva's father.

      Watch Revenge. Episode 22 of Season 10.

      Ignoring orders from their superiors to step down, the team intensifies its search for Bodnar -- and Ziva avenges her father's death.

      Watch Double Blind. Episode 23 of Season 10.

      The Department of Defense hammer comes down over NCIS's handling of the Bodnar case, with the blow falling squarely on Gibbs.

      Watch Damned If You Do. Episode 24 of Season 10.

      While the rest of the team investigates the death of a SEAL, Gibbs faces intensifying scrutiny from the Department of Defense over the Bodnar case.

      Watch Whiskey Tango Foxtrot. Episode 1 of Season 11.

      An explosion that causes a casualty linked to the agency changes Parsons's outlook on Gibbs and the team. DiNozzo and McGee investigate as civilians.

      Watch Past, Present and Future. Episode 2 of Season 11.

      Determined to locate Ziva, Tony chases leads in Israel; Gibbs and the team continue their tireless hunt for Parsa and his growing terrorist ring.

      Watch Under The Radar. Episode 3 of Season 11.

      The team must rely on Twitter for a case involving a missing Navy lieutenant; McGee misplaces his badge but doesn't tell Gibbs and the authorities.

      Watch Anonymous Was a Woman. Episode 4 of Season 11.

      Gibbs and McGee travel to Afghanistan when a murder case leads them to an Afghan women’s shelter Mike Franks has secretly supported for years.

      Watch Once a Crook. Episode 5 of Season 11.

      DiNozzo revisits his Baltimore Police Department days when he spots a felony suspect from an old case at the crime scene of a murdered petty officer.

      Watch Oil & Water. Episode 6 of Season 11.

      The group partners with the Coast Guard Investigative Service to probe a suspicious explosion on an oil rig; a prankster targets team members.

      Watch Better Angels. Episode 7 of Season 11.

      After Gibbs leaves mid-case to help his father reconnect with a former war pilot, Tony and McGee argue over who should run lead on the investigation.

      Watch Alibi. Episode 8 of Season 11.

      When an FBI agent-turned-lawyer confides in Gibbs, the team must re-examine a hit-and-run murder case; McGee grows suspicious of Tony’s odd behavior.

      Watch Gut Check. Episode 9 of Season 11.

      After learning the secretary of the Navy was bugged during a confidential briefing, the NSA analyst who predicted the security breach joins the team.

      Watch Devil's Triad. Episode 10 of Season 11.

      The team discovers a link between a murder victim and the boyfriend of Diane Sterling, Gibbs and Fornell's ex-wife; a new analyst adjusts to NCIS.

      Watch Homesick. Episode 11 of Season 11.

      When a mystery illness strikes children from military families, the team investigates and helps medical researchers; Vance struggles with forgiveness.

      Watch Kill Chain. Episode 12 of Season 11.

      When a stolen drone leads to an elusive terrorist, NCIS teams with the Department of Defense, including Gibbs's former girlfriend.

      Watch Double Back. Episode 13 of Season 11.

      Hunting for a terrorist, the team finds one of his cohorts using evidence from the drone attack. Emotionally shaken, McGee deals with the aftermath.

      Watch Monsters and Men. Episode 14 of Season 11.

      The murder of a port authority officer reveals Parsa's possible whereabouts; Bishop discloses her past association with the elusive terrorist.

      Watch Bulletproof. Episode 15 of Season 11.

      After finding faulty bulletproof vests in a cache of stolen USMC gear, the team tries to locate the source and any vests already shipped to soldiers.

      Watch Dressed To Kill. Episode 16 of Season 11.

      When DiNozzo is investigated in the death of a man impersonating an officer, the one eyewitness is DiNozzo's dad, who is in town to disclose a secret.

      Watch Rock and a Hard Place. Episode 17 of Season 11.

      When a bomb blows before a military charity concert, the team must determine if the target was a washed-up rocker or if a larger scheme was in play.

      Watch Crescent City: Part 1. Episode 18 of Season 11.

      When the body of a New Orleans politician and ex-NCIS agent washes ashore, the two field offices unite to uncover the motive and reveal the killer.

      Watch Crescent City: Part 2. Episode 19 of Season 11.

      Gibbs and Special Agent Pride chase leads in New Orleans after evidence points to a copycat serial killer; Bishop sends DiNozzo a special souvenir.

      Watch Page Not Found. Episode 20 of Season 11.

      After returning to the Department of Defense, McGee's girlfriend finds a break in a controversial case; DiNozzo advises McGee about his love life.

      Watch Alleged. Episode 21 of Season 11.

      The team must ascertain if an officer's murder was the result of a bar fight or because he knew too much; DiNozzo and McGee start a juice cleanse.

      Watch Shooter. Episode 22 of Season 11.

      The team investigates the disappearance of a photographer who was scheduled to testify at an Army court-martial hearing.

      Watch The Admiral's Daughter. Episode 23 of Season 11.

      DiNozzo is given an assignment to bring an admiral's daughter home from France, but he turns to the team when he enters a controversial crime scene.

      Watch Honor Thy Father. Episode 24 of Season 11.

      NCIS investigates a fire on a ship that served as a secret detention site for terrorists; Gibbs returns to his childhood home after his father dies.

      Watch Stop the Bleeding. Episode 1 of Season 13.

      With Gibbs recovering on a naval ship, Tony and CIA officer Joanna Teague join forces in Shanghai to take down The Calling before war breaks out.

      Watch Personal Day. Episode 2 of Season 13.

      Gibbs returns to NCIS with a new look that intrigues the team. His first case back partners him with a DEA agent with whom he has some shared history.

      Watch Incognito. Episode 3 of Season 13.

      A Quantico Marine is murdered after contacting Gibbs about a case. McGee and Bishop go undercover as a couple to keep tabs on a suspect and his wife.

      Watch Double Trouble. Episode 4 of Season 13.

      Director Vance goes back into the field with Gibbs to investigate a murder that leads back to one of Vance's old cases involving an NCIS officer.

      Watch Lockdown. Episode 5 of Season 13.

      While visiting a pharmaceutical company's lab to consult on a murder case, Abby is trapped inside when armed men break in and take employees hostage.

      Watch Viral. Episode 6 of Season 13.

      While McGee and Delilah take the next step in their relationship, the team investigates a series of murders that may be the work of a copycat killer.

      Watch 16 Years. Episode 7 of Season 13.

      The team helps Ducky's cold case club investigate whether the son of a recently murdered ex-naval officer was wrongly convicted of murder years ago.

      Watch Saviora. Episode 8 of Season 13.

      Tony and McGee search South Sudan for volunteer doctors who've gone missing, including the husband of Tony's ex-girlfriend. Gibbs has a setback.

      Watch Day in Court. Episode 9 of Season 13.

      When a petty officer accused of murdering his ex is freed in a mistrial, he begs NCIS to find the real killer. Bishop discovers something unsettling.

      Watch Blood Brothers. Episode 10 of Season 13.

      At Thanksgiving, Bishop goes home to Oklahoma while the team work on holiday plans and try to solve a case involving forgery, murder and leukemia.

      Watch Spinning Wheel. Episode 11 of Season 13.

      Following an attack, Ducky relates the story of his decades-old search for his half-brother. Back at NCIS, Bishop makes a decision about her marriage.

      Watch Sister City (Part 1). Episode 12 of Season 13.

      Gibbs works with New Orleans's local NCIS unit to find Abby's missing brother. [Story concludes on "NCIS: New Orleans,” Season 2, Episode 12.]

      Watch Déjà Vu. Episode 13 of Season 13.

      During freezing weather, a seaman set to testify against a human trafficking ring is murdered, forcing NCIS to race the clock to find other victims.

      Watch Decompressed. Episode 14 of Season 13.

      When a man suddenly dies after attacking three co-workers inside a pressurized chamber, NCIS must solve the case -- but only from outside the chamber.

      Watch React. Episode 15 of Season 13.

      After the Secretary of the Navy's daughter is kidnapped for ransom, she brings in Gibbs and the team, who discover the case is more than it appears.

      Watch Loose Canon. Episode 16 of Season 13.

      Gibbs lets Dr. Taft join him after a suspect in a munitions robbery dies on his operating table. Ducky's autopsy links the suspect to an old NCIS foe.

      Watch After Hours. Episode 17 of Season 13.

      A case that's too open and shut nags at everyone on the team, leading each of them to ruin their evening by revisiting different aspects of the crime.

      Watch Scope. Episode 18 of Season 13.

      Gibbs bonds with a Marine who's the only survivor of an Iraq sniper attack. Forensic evidence leads Abby to the sniper's real mission closer to home.

      Watch Reasonable Doubts. Episode 19 of Season 13.

      The wife and mistress of a Navy public affairs officer each claims to have witnessed the other murdering the man. Tony's dad has a strange encounter.

      Watch Charade. Episode 20 of Season 13.

      Tony stumbles upon the case of his own stolen identity when he's handed an envelope of cash by a senator, who's being blackmailed by "Tony DiNozzo."

      Watch Return to Sender. Episode 21 of Season 13.

      Gibbs and Fornell help former NCIS director Morrow find an ex-intelligence officer who escaped a British prison and was smuggled back into the U.S.

      Watch Homefront. Episode 22 of Season 13.

      Gibbs and Fornell look for an assassin. After the teenage son of a deployed Marine shoots and wounds an intruder, Gibbs learns the boy was the target.

      Watch Dead Letter. Episode 23 of Season 13.

      With Fornell in crisis, Gibbs, Monroe and MI-6 agent Reeves focus on Jacob's story. Abby finds a link to Kort. Gibbs' hunch may lead back to Ziva.

      Watch Family First. Episode 24 of Season 13.

      The NCIS, FBI and MI6 teams continue an international manhunt for an escaped British spy who's targeting current and former agents.

      Watch Twenty Klicks. Episode 1 of Season 12.

      When Gibbs and McGee's mission overseas is compromised, the NCIS team races to locate them before a Russian mercenary group can do the same.

      Watch Kill the Messenger. Episode 2 of Season 12.

      The NCIS team must determine if Washington's latest murder was connected to a mugging or to a private meeting with the president.

      Watch So It Goes. Episode 3 of Season 12.

      Ducky returns home to London after an NCIS case reveals a connection to his estranged childhood best friend.

      Watch Choke Hold. Episode 4 of Season 12.

      After a gifted naval research scientist is murdered, the NCIS team is assigned to a joint terrorism task force by the secretary of the Navy.

      Watch The San Dominick. Episode 5 of Season 12.

      When NCIS investigates a man overboard, they find Gibbs trapped on a ship that has been commandeered by pirates.

      Watch Parental Guidance Suggested. Episode 6 of Season 12.

      The NCIS team investigates the murder of the wife of a Navy commander who recently appeared on a jihadist target list.

      Watch The Searchers. Episode 7 of Season 12.

      Gibbs takes a case to heart when the NCIS team exposes a fraudulent charity that preys on the families and friends of missing military personnel.

      Watch Semper Fortis. Episode 8 of Season 12.

      Gibbs tries to help a corpsman who was arrested after providing unlicensed, yet necessary, medical care at the scene of a hit-and-run accident.

      Watch Grounded. Episode 9 of Season 12.

      Surrounded by Thanksgiving travelers at the airport, Bishop and her husband work with DiNozzo on a case involving an elevated terrorist threat.

      Watch House Rules. Episode 10 of Season 12.

      A week before Christmas, Washington faces a citywide Internet shutdown, which leaves the NCIS team to consult with three imprisoned cyberterrorists.

      Watch Check. Episode 11 of Season 12.

      While Gibbs navigates between two ex-wives relentlessly vying for his attention, the team investigates copycat crime scenes.

      Watch The Enemy Within. Episode 12 of Season 12.

      The NCIS team searches for a home-grown terrorist after evidence reveals his role in the capture of a social worker in Syria.

      Watch We Build, We Fight. Episode 13 of Season 12.

      When the first openly gay serviceman who was set to receive the Congressional Medal of Honor is murdered, NCIS investigates a possible hate crime.

      Watch Cadence. Episode 14 of Season 12.

      The NCIS team investigates the murder of a U.S. Marine who attended the same military academy as Dinozzo.

      Watch Cabin Fever. Episode 15 of Season 12.

      The lead suspect in the team's current case is Gibbs's archnemesis, but he leaves the investigation to his team in order to help a grieving Fornell.

      Watch Blast From the Past. Episode 16 of Season 12.

      A police department homicide case is transferred to NCIS when the victim's stolen identity matches one created for Gibbs two decades earlier.

      Watch The Artful Dodger. Episode 17 of Season 12.

      With his knowledge of and contacts in the world of black-market art, Dinozzo Sr. assists the NCIS team on a murder case.

      Watch Status Update. Episode 18 of Season 12.

      McGee and the NCIS team partner with Delilah and the Department of Defense when a murder case includes a clue to a terror group in Dubai.

      Watch Patience. Episode 19 of Season 12.

      NCIS connects the murder of a petty officer to a 40-year-old cold case, the bombing of a U.S. airport.

      Watch No Good Deed. Episode 20 of Season 12.

      DiNozzo partners with his girlfriend, Zoe, on a case after evidence calls for a joint investigation between NCIS and ATF.

      Watch Lost in Translation. Episode 21 of Season 12.

      After a U.S. Marine is killed, the NCIS team links the case to a terror group in Afghanistan, prompting Gibbs and Bishop to travel overseas.

      Watch Troll. Episode 22 of Season 12.

      The NCIS cyber operations division sends special agent Ned Dorneget to assist the team in the murder case of a Navy warfare engineer.

      Watch The Lost Boys. Episode 23 of Season 12.

      The NCIS cyber case continues after the team uncovers a group that's recruiting children to carry out acts of terrorism on a global scale.

      Watch Neverland. Episode 24 of Season 12.

      Following a deadly bombing overseas, NCIS works with several agencies to track a global terrorist group that's recruiting teens via the Internet.

      Watch Spider and the Fly. Episode 1 of Season 8.

      With drug cartel leader Paloma Reynosa on the loose and intent on fulfilling her vendetta, Gibbs takes desperate measures to protect his loved ones.

      Watch Worst Nightmare. Episode 2 of Season 8.

      A young girl's kidnapping turns into much more when her grandfather complicates the investigation by working outside the law.

      Watch Short Fuse. Episode 3 of Season 8.

      When the motives behind an attack on a female bomb tech link her to a murder, the team investigates her closely guarded personal life.

      Watch Royals and Loyals. Episode 4 of Season 8.

      When the body of an American officer is connected to a British Navy vessel, murder turns into a volatile international incident.

      Watch Dead Air. Episode 5 of Season 8.

      When a controversial DJ and a Navy commander are shot to death on a live talk show, the team uncovers a sinister plan that involves a bomb.

      Watch Cracked. Episode 6 of Season 8.

      Delving into the mind of a brilliant Navy scientist, Abby becomes fixated on solving her murder; DiNozzo's fling leads to an interesting Halloween.

      Watch Broken Arrow. Episode 7 of Season 8.

      DiNozzo's father returns, playing a vital role in a murder investigation that could have catastrophic results.

      Watch Enemies Foreign. Episode 8 of Season 8.

      The team is assigned to protect Ziva's father when his attendance at a high-level conference leads to an unexpected turn of events.

      Watch Enemies Domestic. Episode 9 of Season 8.

      The team scrambles for answers after a shocking ambush leaves Vance seriously injured and reveals a new twist to their current investigation.

      Watch False Witness. Episode 10 of Season 8.

      The NCIS team investigates the disappearance of a Navy petty officer who is the sole witness in an upcoming murder trial.

      Watch Ships in the Night. Episode 11 of Season 8.

      Gibbs and the team partner with a Coast Guard Investigative Service agent to solve the murder of a Marine gunned down on a dinner boat.

      Watch Recruited. Episode 12 of Season 8.

      A Navy recruiter's session at a college fair comes to a fatal end, prompting the team, along with Dr. Mallard's forerunner, to solve his murder.

      Watch Freedom. Episode 13 of Season 8.

      The team springs into action to find the person responsible for beating a Marine sergeant to death in his own backyard.

      Watch A Man Walks into a Bar…. Episode 14 of Season 8.

      The team members undergo mandatory psych evaluations while investigating the death of a commanding officer who was shot in his stateroom.

      Watch Defiance. Episode 15 of Season 8.

      A botched assassination attempt forces the team to protect a foreign official's daughter who is studying in the U.S. and is smitten with McGee.

      Watch Kill Screen. Episode 16 of Season 8.

      The dismembered fingertips and teeth of a murdered Marine are found in a pickpocket's stolen purse, launching a mission to find a coldblooded killer.

      Watch One Last Score. Episode 17 of Season 8.

      As a new agent joins the office, the team learns that a former employee found dead was selling details on how to rob a warehouse full of valuables.

      Watch Out of the Frying Pan. Episode 18 of Season 8.

      Gibbs questions Vance's motives when he's asked to question a teenage boy accused of killing his retired Marine father.

      Watch Tell-All. Episode 19 of Season 8.

      The team connects a message written in blood, left by a murdered Navy commander, to a manuscript that may contain classified military information.

      Watch Two-Faced. Episode 20 of Season 8.

      Special Agent Barrett returns to lead the investigation of a seaman's death that may be connected to a series of port-related murders.

      Watch Dead Reflection. Episode 21 of Season 8.

      The NCIS team tracks a Navy lieutenant's killer after a Pentagon security camera reveals a petty officer committing the crime.

      Watch Baltimore. Episode 22 of Season 8.

      When his ex-partner seems to be the victim of the Port-to-Port Killer, Tony revisits his days as a detective in Baltimore, where he first met Gibbs.

      Watch Swan Song. Episode 23 of Season 8.

      After new evidence reveals that the Port-to-Port Killer has infiltrated the agency, the teams chase every lead in a race to track him down.

      Watch Pyramid. Episode 24 of Season 8.

      The lives of the team are in jeopardy when they follow a trail of violence and come face-to-face with the infamous Port-to-Port Killer.

      Watch Last Man Standing. Episode 1 of Season 6.

      Gibbs learns of a startling relationship between a homicide case involving the killing of a petty officer and Vance's decision to break up his team.

      Watch Agent Afloat. Episode 2 of Season 6.

      While investigating an apparent suicide aboard an aircraft carrier, Tony discovers a possible connection to a larger scheme.

      Watch Capitol Offense. Episode 3 of Season 6.

      The team learns the hazards of Washington politics when an esteemed senator asks Gibbs to solve the murder of a female naval officer.

      Watch Heartland. Episode 4 of Season 6.

      Things get a little personal when the ambush of two Marines leads the NCIS team to Gibbs's hometown, where some of his skeletons are revealed.

      Watch Nine Lives. Episode 5 of Season 6.

      NCIS runs headlong into FBI interference when they look into the case of a Marine who was found tortured and murdered in his garage.

      Watch Murder 2.0. Episode 6 of Season 6.

      In the days before Halloween, a rampaging serial killer posts cryptic clues online, which the NCIS team must decipher before he strikes again.

      Watch Collateral Damage. Episode 7 of Season 6.

      Rookie Dwayne Wilson helps NCIS investigate a bank robbery that leaves a guard dead at Quantico, the world's most heavily secured Marine base.

      Watch Cloak. Episode 8 of Season 6.

      When Vance instructs Gibbs to track down the traitor in the department, the team launches an elaborate war game designed to ferret out the mole.

      Watch Dagger. Episode 9 of Season 6.

      To nab a crook determined to steal government secrets, the team is forced to rely on tips and information from sketchy sources.

      Watch Road Kill. Episode 10 of Season 6.

      A petty officer is killed in a car crash, but suspicious circumstances lead the agents to question whether his death was truly an accident.

      Watch Silent Night. Episode 11 of Season 6.

      A double homicide case leads the NCIS team to a set of fingerprints that implicate a Vietnam War veteran who's been dead for almost two decades.

      Watch Caged. Episode 12 of Season 6.

      When McGee enters a women's prison to investigate the murder of a guard, the inmates riot and take over, trapping him behind bars.

      Watch Broken Bird. Episode 13 of Season 6.

      After Ducky is stabbed during an investigation, the team uncovers decades-old secrets from the doctor's past -- including allegations of war crimes.

      Watch Love & War. Episode 14 of Season 6.

      When a captain is murdered in gruesome fashion, the NCIS team uncovers surprising details about his private life, including a possible act of treason.

      Watch Deliverance. Episode 15 of Season 6.

      The murder of a Marine with a questionable past -- and a cryptic clue left at the crime scene -- forces Gibbs to confront secrets of his own.

      Watch Bounce. Episode 16 of Season 6.

      When one of Tony's old cases is reopened and a key witness found murdered, Gibbs hands him the reins to finally solve the case.

      Watch South by Southwest. Episode 17 of Season 6.

      Gibbs gets a chance to show off his sniper skills when the murder of a fellow agent leads him to Arizona, the victim's home turf.

      Watch Knockout. Episode 18 of Season 6.

      When Vance deploys the squad in his own private investigation into the death of a friend, Gibbs decides to take a closer look into Vance's past.

      Watch Hide and Seek. Episode 19 of Season 6.

      When an officer's son finds a gun at a playground, Gibbs and his team work to untangle a series of murders committed with the weapon.

      Watch Dead Reckoning. Episode 20 of Season 6.

      Gibbs and the rest of the NCIS team join forces with shifty CIA agent Trent Kort to bring down one of the most-wanted criminals on their watch list.

      Watch Toxic. Episode 21 of Season 6.

      A scientist working on a top-secret government project disappears, and Abby is tapped to take over in his absence -- but will she meet a similar fate?

      Watch Legend: Part 1. Episode 22 of Season 6.

      NCIS teams up with the Office of Special Projects in Los Angeles to investigate a murder, but the case spirals into an issue of national security.

      Watch Legend: Part 2. Episode 23 of Season 6.

      In Los Angeles, the joint task force closes in on a terrorist sleeper cell, but Mossad operative Rivkin interferes with an agenda of his own.

      Watch Semper Fidelis. Episode 24 of Season 6.

      When a security leak at a top-secret meeting leads to the murder of an ICE agent, NCIS teams up with the FBI and ICE to hunt down the killer.

      Watch Aliyah. Episode 25 of Season 6.

      The team follows Mossad agent Rivkin back to Israel, where Ziva meets with her father -- the head of Mossad -- in an increasingly volatile situation.

      Watch House Divided. Episode 1 of Season 15.

      The NCIS team investigates a drug mule's murder and finds an important clue that may lead to Gibbs and McGee.

      Watch Twofer. Episode 2 of Season 15.

      A murdered Navy lieutenant is found stuffed inside the coffin of a civilian. Meanwhile, Gibbs and McGee undergo psych evaluations.

      Watch Exit Strategy. Episode 3 of Season 15.

      The reappearance of a police officer believed to have been killed years ago sparks renewed interest in an arms deal gone bad.

      Watch Skeleton Crew. Episode 4 of Season 15.

      A stabbing at a murder-mystery party leads to a kidnapping investigation amid hurricane weather. Vance welcomes a new forensic psychologist.

      Watch Trapped. Episode 5 of Season 15.

      When a man is found dead underneath a golf course's lawn mower, the NCIS team investigates the victim's ham radio in hopes of locating a witness.

      Watch Fake It Til You Make It. Episode 6 of Season 15.

      After a friend of Reeves is kidnapped, the team homes in on a prime suspect. McGee is less than pleased when an embarrassing photo resurfaces.

      Watch Burden of Proof. Episode 7 of Season 15.

      When a convicted murderer who contends he was framed by the NCIS is granted an appeal after 10 years behind bars, Gibbs investigate his claims.

      Watch Voices. Episode 8 of Season 15.

      While trail running, a woman hears a mysterious voice that leads her to a dead Marine. She later agrees to help the NCIS solve the case.

      Watch Ready or Not. Episode 9 of Season 15.

      The NCIS team searches for the person responsible for an MI5 agent's murder. Meanwhile, McGee and Delilah prepare to become parents.

      Watch Snake Eyes. Episode 10 of Season 15.

      While escorting a senator home from Afghanistan to be with his seriously injured son, Sloane and Torres find themselves in harm's way.

      Watch Dark Secrets. Episode 11 of Season 15.

      A seemingly successful JAG lawyer is found dead of an apparent suicide, but the NCIS team discovers that appearances can be deceiving.

      Watch High Tide. Episode 12 of Season 15.

      Bishop and Torres go undercover in hopes of busting up a drug ring, but Vance is concerned that Torres may take things too far.

      Watch Family Ties. Episode 13 of Season 15.

      While investigating a deadly hit-and-run, the NCIS team discovers that their key witness has vanished, and must scramble for answers.

      Watch Keep Your Friends Close. Episode 14 of Season 15.

      Gibbs and the NCIS team run into a familiar -- but not exactly friendly -- face while investigating a Navy commander's murder.

      Watch Keep Your Enemies Closer. Episode 15 of Season 15.

      Following a deadly explosion, the NCIS team brings in Gabriel Hicks for questioning. Later, McGee seeks help from an unlikely source.

      Watch Handle With Care. Episode 16 of Season 15.

      A petty officer's sudden and suspicious death inspires the NCIS to take a closer look at a care package he received.

      Watch One Man's Trash. Episode 17 of Season 15.

      While watching an antique collector show on TV, Gibbs and Ducky spot a piece of evidence that may help solve a cold case from 2002.

      Watch Death From Above. Episode 18 of Season 15.

      What starts as a relatively quiet day at the office takes a turn toward chaos when a maintenance man dies on the roof of NCIS headquarters.

      Watch The Numerical Limit. Episode 19 of Season 15.

      After two men with connections to fake military IDs are murdered, Gibbs looks after a 10-year-old girl who may be the next target.

      Watch Sight Unseen. Episode 20 of Season 15.

      After a sheriff drives his car into a lake while transporting a suspect, the NCIS relies on a blind witness to help them home in on what happened.

      Watch One Step Forward. Episode 21 of Season 15.

      A homeless veteran begs Gibbs to solve her mother's murder. Meanwhile, the team battles over who gets to dine with Abby at an exclusive restaurant.

      Watch Two Steps Back. Episode 22 of Season 15.

      Following a tragic loss, the NCIS team struggles to regroup and get justice for their fallen friend.

      Watch Fallout. Episode 23 of Season 15.

      Gibbs receives a shock while attending the memorial service for a friend lost at sea. Meanwhile, the team attempts to accept a painful loss.

      Watch Date with Destiny. Episode 24 of Season 15.

      Sloane attacks a man who she believes tortured her in Afghanistan, but not everyone in the NCIS believes she's thinking straight.

      Watch Truth or Consequences. Episode 1 of Season 7.

      As the hunt for Ziva's replacement begins, Gibbs and his remaining crew must get back to work with the past still weighing heavily on their minds.

      Watch Reunion. Episode 2 of Season 7.

      The team finds that the bizarre death of a Marine and his friends may be linked to their past, but it is Gibbs who ends up traveling down memory lane.

      Watch The Inside Man. Episode 3 of Season 7.

      The team must take a second look into the death of a lieutenant after the blogger who accused them of a cover-up winds up dead.

      Watch Good Cop, Bad Cop. Episode 4 of Season 7.

      When a Marine's body surfaces halfway around the world, the investigation forces Ziva to dig up a buried chapter of her life.

      Watch Code of Conduct. Episode 5 of Season 7.

      When a Marine known for practical jokes dies on the eve of Halloween, the team finds that the victim's pranks may have roused ghoulish retribution.

      Watch Outlaws and In-Laws. Episode 6 of Season 7.

      A murder investigation prompts Gibbs and the team to play family counselor to his former mentor in hopes of averting a bloody international conflict.

      Watch Endgame. Episode 7 of Season 7.

      With the team's help, Vance faces his demons while uncovering a complex relationship with a killer that puts his whole family in danger.

      Watch Power Down. Episode 8 of Season 7.

      The team members literally find themselves in the dark when an investigation into the death of a lieutenant is connected to a citywide blackout.

      Watch Child's Play. Episode 9 of Season 7.

      A dead Marine's work with a government think tank leads Gibbs and the team into the life of a 12-year-old prodigy who may be the killer's next target.

      Watch Faith. Episode 10 of Season 7.

      When the enlisted son of a retired colonel-turned-preacher is found dead, the team believes he may be the victim of a hate crime; Gibbs's dad visits.

      Watch Ignition. Episode 11 of Season 7.

      When a Navy pilot is found dead under odd circumstances, Gibbs and his team find themselves battling a no-nonsense attorney with a hidden agenda.

      Watch Flesh & Blood. Episode 12 of Season 7.

      Gibbs questions DiNozzo's ability to do his job when Tony's father becomes involved in the team's investigation of an assassination plot.

      Watch Jet Lag. Episode 13 of Season 7.

      When the government's star witness in an embezzlement case is targeted by an assassin, it is up to the team to help her make it home alive.

      Watch Masquerade. Episode 14 of Season 7.

      The team finds itself in a race against time when a terrorist group threatens to detonate a dirty bomb in the Washington area.

      Watch Jack-Knife. Episode 15 of Season 7.

      When a Marine veteran is found dead, Gibbs, Fornell and the team hit the open road to bust an illegal trucking operation.

      Watch Mother's Day. Episode 16 of Season 7.

      Secrets are exposed when Gibbs's former mother-in-law surfaces as a witness in an investigation of her Navy captain fiancé's murder.

      Watch Double Identity. Episode 17 of Season 7.

      The team investigates the shooting of a Marine who had gone MIA and uncovers that he led another life that no one could have imagined.

      Watch Jurisdiction. Episode 18 of Season 7.

      The team members notice similarities between themselves and their Coast Guard counterparts when a Navy diver seeking sunken treasure is found dead.

      Watch Guilty Pleasure. Episode 19 of Season 7.

      The death of a Navy officer leads Gibbs and the team into the world of high-priced call girls, relying on a D.C. madam to help them catch a killer.

      Watch Moonlighting. Episode 20 of Season 7.

      The bodies of a petty officer and a mobster wash up on the beach, leading the team to a polygraph specialist who may covering up the truth.

      Watch Obsession. Episode 21 of Season 7.

      DiNozzo finds himself increasingly captivated by a woman he has never met while he investigates the murder of her brother.

      Watch Borderland. Episode 22 of Season 7.

      The team tries to track down a serial killer, while Abby heads south of the border into Mexico to deliver a speech, with McGee in tow.

      Watch Patriot Down. Episode 23 of Season 7.

      When a colleague's murder sends shockwaves through the team, Gibbs uncovers a surprising link to the crime; the team learns of the rape of a sailor.

      Watch Rule Fifty-One. Episode 24 of Season 7.

      In Mexico, Gibbs faces his demons and meets the head of a drug cartel, bringing him to a startling decision; a prisoner dies on Tony and Ziva's watch.

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      Mark HarmonDavid McCallumPauley PerretteSean MurrayMichael WeatherlyBrian DietzenRocky CarrollCote de PabloEmily WickershamLauren Holly

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