Callie, a 16-year-old girl fresh out of juvenile hall, moves in with school vice principal Lena and her partner, Stef -- plus their blended brood.
Callie is accused of selling pills at school. Meanwhile, Lena and Stef decide not to punish Brandon, causing tension among the parents.
Mike asks Brandon to move in with him. Meanwhile, Jesus and Lexi continue to keep their relationship a secret from Mariana.
As everyone celebrates Mariana's 15th birthday, the secret that Jesus has been hiding comes to light, creating tension between Mariana and Lexi.
While Stef and Lena try to find time to work on their relationship, Lexi and Jesus must deal with the consequences of their actions.
Brandon has an audition with a sought-after piano coach. Meanwhile, Jesus is invited to a church camp.
Lexi's parents punish her when they learn the truth about her and Jesus.
With Ana pressuring Mariana for more money, Jesus confronts his birth mother -- but things don't go as planned.
Mariana and Jesus deal with the repercussions of their actions.
As Stef and Lena prepare to wed, Stef isn't as involved as a frazzled Lena would like. Meanwhile, Callie faces a decision in her case against Liam.
The family faces the realization that Callie has run away. Mariana and Jesus spend as much time as possible with Lexi before she leaves for Honduras.
Callie's fate is left in a judge's hands. Mariana joins a school play. Jesus struggles with his medication.
Callie and Brandon sneak around. Stef goes back to work, worrying Lena. Jesus joins the wrestling team. Mariana is caught in a love triangle.
Callie considers applying for an apartment. Lena wonders if she can still have a baby, while Stef has trouble accepting her father's apology.
Stef deals with a loss, while Callie faces a tough decision.
Brandon goes to extremes to pay Mike back for the piano lessons. Stef is worried about having to testify.
Callie takes pictures of other foster kids to help get them homes.
Lexi visits Jesus by surprise. Stef and Lena decide on a sperm donor.
Callie visits her father to see if he will sign away his parental rights so she and Jude can be adopted. Mariana meets Zac's mother.
Ana gives Stef an ultimatum. Wyatt comes back to town. Callie is the butt of a school prank.
Callie and Jude find out the truth about Donald. Vico seeks revenge against Brandon.
Callie makes a revelation about her dad, Brandon is tormented by his guilty conscience after sleeping with Dani, and Stef becomes suspicious of Mike.
As Brandon struggles with a major decision, Stef confronts Mike about his whereabouts the night Ana disappeared.
While Lena hopes to reconnect with Stef on their weekend "babymoon," the kids throw a house party that gets out of hand.
Callie meets her half sister to address the roadblocks to her adoption, Timothy starts a legal battle, and Lena vies for the principal's job.
Callie worries about how her actions have impacted Jude, Stef considers moving forward with an investigation, and Emma second-guesses her breakup.
Tragedy strikes when Lena learns about a medical issue affecting her pregnancy. Stef confronts Mike about Ana, while Wyatt seeks relationship advice.
Brandon reveals a big secret, Jesus feels pressured to prove his loyalty to Hayley, and Callie brings Jude on a visit with the Quinns.
Callie returns to Girls United, her old foster group home; Mariana and Hayley prepare a double-date dinner with Mat and Jesus.
The children attend a Mexican street festival, Callie struggles to control her panic attacks, and Ana wants to make amends with the twins.
Callie asks her biological father for a favor, but a betrayal threatens to derail their new bond. Connor is pressured to end his friendship with Jude.
Brandon recalls the previous family Christmas, when the Fosters took in Callie and Jude, while guilt-ridden Jude overcompensates with Callie.
While Stef and Lena take opposing positions on several issues, Callie continues to fume over Robert's refusal to sign her abandonment papers.
Callie is asked to intercede on behalf of troubled foster child Kiara, while Mariana is invited to participate in a major academic competition.
During a family camping trip, Jesus reveals a big secret, Brandon and Callie attempt to move on, and Jude seethes over how he is being treated.
Callie struggles to connect with Robert, while Brandon tries to persuade Stef to let him go on the band tour. Jude and Connor double-date together.
Brandon's band lands in hot water when a new gig turns out to be a dodgy "pharm" party. Jesus, meanwhile, is offered a spot at a top wrestling school.
Callie informs Jude she's moving in with Robert while keeping a secret from Stef and Lena. Mariana finds a new way to recruit dancers for her team.
As Callie prepares to move, Mariana organizes a student protest to distract from the family drama, and Jude grills Connor about their relationship.
Stef and Lena devise a new plan to adopt Callie, but keep the riskier details secret, while Jude is disciplined for sneaking out to be with Connor.
Callie faces an uncertain future after learning that Liam stole her identity in a scam, while Jude's life is turned inside out after Connor is shot.
Robert and Callie reach a crucial agreement in their relationship, while Jude tells Lena the truth about Connor and his fight with Connor's dad.
Stef is a first responder when Nick's actions put the school on lockdown. After what happened with Brandon is revealed, Callie's afraid of the future.
The entire town is still on edge and in rumor mode after the lockdown is lifted. Brandon causes a huge rift with Stef when he helps Cortney move.
Stef and Lena reach a decision about Callie, who rides off with a law student after she's suspended from school. Jude attends a Christian youth group.
Brandon gets a lesson in being an adult. Callie and Al's senior project sends them to her former foster home. Lena and Stef work to save Lena's job.
Lena's '70s-themed 40th birthday party doesn't go as the family hoped. Callie and Aaron try to help her former foster brother. Brandon needs money.
Lena and Stef are stressed out by property tax problems. Mariana encounters sexism on her project team. Nick gets a hearing that could affect Mariana.
Brandon is feeling increasingly trapped by Cortney and Mason. Stef and Lena try to find a solution to their tax problems. Jesus covers for Gabe.
The stress of competition takes a toll on Mariana. Callie is warned to stop her investigations. Stef and Lena's tax problems lead to a drastic step.
The kids are shocked by Lena and Stef's news. In New York for his Juilliard audition, Brandon meets a girl who makes him rethink life with Cortney.
The past comes back to bite Brandon after he receives word from Juilliard. Nick is still fixated on Mariana. Callie is shaken by new DNA evidence.
A fight sends Jesus to the hospital. Callie's suspicions about Troy have larger consequences. Brandon goes to see Cortney. Lena learns about Mariana.
Jesus dreams about his siblings while in an induced coma. Callie's troubles deepen after Troy talks with police. Brandon sees something suspicious.
Stef takes drastic action to stop her kids from keeping secrets. Callie gets on the wrong side of a guard. Mike makes a decision that will impact AJ.
Callie and Jesus are both back home. Callie builds a case against Troy. Brandon engages Jesus with music, and Mariana goes back into therapy.
Brandon gives Emma moral support. Callie's new senior project about juvenile detention gets mixed reactions. Jude explores his sexuality via an app.
Jesus can’t read Emma’s letter. Lena starts an LGBT sex education class. A surprise wedding turns into an even bigger surprise.
A new case introduces Stef to Diamond, a teen prostitute. Mike feels rejected by AJ's decision to move out. Brandon reveals Emma's secret to Mariana.
With only a week until her trial, Callie joins Aaron on a trip home. Gabe is about to move out of town when Mariana asks him to help her and Jesus.
Callie seems to sabotage her case by trying to convict Troy. Stef and Lena find Emma’s letter, and Jesus discovers Mariana’s part in exposing Emma.
Callie is offered a harsh plea deal, giving Stef and Mike 24 hours to prove Troy's guilt. Callie's decision to help Diamond puts her in danger.
Callie befriends a runaway who is looking for his older brother, and Stef catches the suspected driver responsible for the car accident.
While the Fosters hold a Father's Day get-together, Callie spends the holiday with her dad and receives some bad news about Sophia.
Lena and Stef play matchmaker for Lena's boss, Jude and Connor struggle to cope with the shooting, and the Fosters take in A.J., who soon acts out.
Old wounds reopen when Lena's family comes for a visit, Jude resists labeling his sexual orientation and Cole asks Callie to an LGBT prom.
Callie ropes Brandon into a road trip to Mexico, Mariana fears that she might be pregnant, and Stef and Lena go to marriage counseling.
Jude throws Callie a surprise birthday party, Brandon's suspicions about A.J. lead to a blowout, and A.J. and Callie share a surprise kiss.
Callie and A.J.'s kiss leads to unexpected consequences, Brandon gets a rude awakening, and Callie and A.J. get arrested for car theft.
Rita and her daughter fight, a social worker investigates Callie and Brandon's relationship, and Stef discovers a new lead in the car accident.
The Fosters go to Idyllwild for Brandon's music competition, Callie confronts Carmen and Brooke, and Mike turns up a clue for Stef's investigation.
Lena and Stef throw an anniversary party for Lena's parents, and Callie and Brandon consider coming clean about their own relationship.
Brandon meets a Juilliard recruiter after his performance. Callie's foster care app gets a potential investor. Stef's mother worries about her health.
Worried their secret may be exposed, Brandon and Callie panic. Tension mounts between Lexi and Mariana in their campaign for junior class president.
Jude befriends a quirky teen he met at Callie's foster-youth event. Brandon and Mat write a rock musical. Jesus asks about his birth father.
Callie and Jude discover that their new friend Jack is being abused. Jesus gets closer to Gabe at work. Nick surprises Mariana by asking her out.
Callie seeks Rita's counsel about filming a commercial endorsement of a foster care bill, while Nick gets advice from Jesus about dating Mariana.
Brandon's rock musical adaptation of "Romeo and Juliet" stirs unexpected controversy. Stef teaches a class. Rita's daughter Chloe contacts Callie.
Jesus and Mariana have a dispute over how to celebrate their 16th birthdays. Callie and Brandon make a pact not to bring significant others home.
Mariana worries that Nick may break up with her. The twins try to help their birth father. Callie is a character witness in a child custody case.
Mariana and Mat face their true feelings. Opening night of Brandon's musical hits close to home for the family. Stef makes a tragic discovery.
Callie faces a tragic loss and a moral dilemma. Mariana's guilt about Mat and Nick grows. Brandon reveals the truth about Cortney to his moms.
Stef frantically searches for Callie. Jesus reacts angrily over Brandon's role in Emma's decision. Mariana leads the Anchor Beach protests.
Callie audits an art course in hopes of changing her life. Stef meets the new neighbor. Jesus wants to work only with Gabe on his senior project.
Mariana and Jude start an underground paper to continue protesting. Lena doesn't understand Stef's reaction to Tess. Grace and Brandon grow closer.
Mariana bonds with the derby team. Jesus' anxiety over Emma makes him lash out at Brandon. Cole gives Callie advice about her feelings for Aaron.
Dinner with the new neighbors makes Stef and Lena tense. A favor for Courtney comes between Brandon and Grace. Mariana parties with her derby friends.
Mariana makes her case to Lena to join the derby. Emma gives Jesus some tough love choices. Grace's evening with Courtney and Brandon doesn't go well.
An extended Foster family dinner brings up old and new wounds. Brandon is jealous of Gabe and Courtney. Jude and Taylor misunderstand a gaming offer.
Jesus tries to goad Gabe into action over Anna. Aaron takes Callie on a dinner date, and Brandon gets shocking news about Grace. Lena faces the board.
An undocumented student publicly reveals herself. Prom brings some couples together but pulls others apart. Callie takes a big risk to help a friend.
The undocumented student and Callie hide from authorities in a church and spread her story. The Fosters reach out to the undocumented family.
As Callie helps her friend, Brandon and Grace try to deal with her diagnosis and intimacy. Mariana is suddenly juggling multiple suitors.
Callie leads a buzzworthy action at an anti-immigration rally to support her undocumented friend. Key evidence appears that may save Anchor Beach.
Brandon and Grace's splashy senior prank ends up going a bit too far. Meanwhile, everything changes between Mariana and Mat.
Callie gets a tip from an unlikely source. Brandon is pulled into Grace's family drama, and Jude reassures Norah about his relationship with Declan.
Stef's anxiety worsens, and her mother offers support. Callie and Jude recall their biological mother. Brandon and Grace make a big decision.
Stef faces her demons and comes clean to Lena about her worries. Callie and Jude clash over Donald, while Mariana and Emma go head-to-head.
Callie speaks on a panel about Ximena's struggle and realizes she may have found her calling. Mariana can't decide between her two suitors.
Stef and Lena try to reconnect at a retreat, and Brandon and Grace's road trip leads to revelations. Mariana and Emma compete for an internship.
Callie's and Brandon's graduation day arrives, but heartbreaking news sends the family into a tailspin. Jude rethinks his involvement in gaming.
Years have elapsed, and the Foster family has plenty to celebrate in the first of a three-part series finale.
The Fosters travel to the islands for Brandon and Eliza's wedding, while the in-laws pull rank. As the young couple spars, Brandon turns to Callie.
Will the wedding take place? What will the future bring? Lena and Stef deliver monumental news that promises to change all of the Fosters' lives.