Stef frantically searches for Callie after she offers to help Diamond; Jesus unleashes his anger after discovering Brandon helped Emma with a deeply personal decision and Mariana leads the charge against Anchor Beach Charter's privatization.
Callie gets control of her life and starts auditing art classes at a local college; Jesus distances himself from Mariana and Brandon so he can build his tree house with Gabe alone; and the Fosters get a new neighbor who has history with Stef.
Callie and Aaron go on their first official date; Mariana and Jude spearhead an underground school newspaper; Noah and Jude question their compatibility; Brandon and Grace take their relationship to the next level and the new neighbors come over for a family dinner party.
Callie and Aaron discuss taking their relationship to the next level. Mariana finds fulfillment training with the Latina derby team. Brandon's new girlfriend Grace catches him playing hero to his ex-girlfriend Courtney.
The Fosters kids attend a party at the Derby warehouse, but things escalate quickly when the cops show up. Lena struggles when Stef starts to become obsessed with an ongoing case at work, and Brandon's relationship with Grace is put in jeopardy.
Callie is torn with turning over a new leaf or supporting a cause that means a lot to her, while Jude and Taylor begin making gaming videos that earn them unwanted notoriety. Stef makes major headway in her case.
Lena's parents return for a visit; Callie and Aaron grow closer; Mariana's attempt to get closer to Logan backfires when his girlfriend catches wind of it.
Brandon's party goes south when secrets come out; Mariana and Jude attempt to convince students to vote against their school going private.
Mariana throws an alternative prom at the Derby warehouse; Brandon asks Grace to the prom and learns it may be his last night with her.
Ximena and Callie are still in the church seeking sanctuary from ICE. The Adams Fosters' offer support to the Sinfuego family as they struggle with their immigration status.
Callie actively helps to make Ximena's fight visible. Meanwhile, Brandon and Grace struggle to be intimate knowing her diagnosis and Mariana is suddenly courted by multiple suitors.
Callie and her friends support Ximena in a big way at a conservative anti-immigration rally and get a lot of buzz for Ximena's plight. Meanwhile, an unlikely source offers a key piece of evidence that may help save Anchor Beach from going private and the family celebrates Stef's birthday.
Brandon and Grace plan the ultimate senior prank which ends up going a little too far. Mariana and Mat make a huge decision about the future of their relationship.
Callie receives a surprising tip from an unexpected source. Meanwhile, Jude tries to assuage Noah's fears about his budding relationship with fellow gamer Declan.
Stef's mom comes to visit and helps Stef cope with a tough time. Meanwhile, Callie and Jude grapple with the memory of their biological mother.
Stef confronts her demons and finally comes clean to Lena about what's been troubling her. Mariana and Emma find themselves going head to head, putting Poppy and Jesus in an awkward position.
Callie speaks on a panel about Ximena's struggle and realizes she may have a passion for something other than art. Meanwhile, Mariana is torn between two suitors.
Brandon and Grace go on a road trip and discover a lot about each other, while Mariana and Emma vie for a competitive internship. Stef and Lena go on a couples retreat to reconnect.
In the spring finale, it's graduation day for Callie and Brandon, but after some shocking news, the family wonders whether they will make it to the ceremony.
The Adams Fosters comes together for some major celebrations, set one year after the spring finale.
The family travels to Turks & Caicos for Brandon and Eliza's wedding where they find themselves at odds with their future in-laws, meanwhile when Brandon and Eliza find themselves butting heads, Brandon turns to the person who knows him best.
After a turbulent few days in Turks & Caicos, the family starts to question if the wedding will actually take place. The moms make a huge decision that will change the family forever.