The Quinns are interested in having Callie join the family; Stef and Lena take different sides on several issues; Brandon is invited to attend a prestigious music program; Jesus hears shocking news at Ana's AA meeting.
Callie turns to Stef for help after she learns that Kiara has been placed in an unfit foster home; Mariana hides her high math scores from Mat; Brandon is given an opportunity with the band; Jesus reveals his secret to Hayley.
The family heads into the wilderness for a camping trip; Jesus has a difficult time keeping secrets; Brandon and Callie work on their relationship; Jude dislikes the way he is being treated; Mike asks Ana for a big commitment.
Callie tries to find a place in her life for Robert; Jude and Connor go on a double date. Ana's situation gives Mariana a risky idea for the Adams Foster family. Brandon aims to convince the band that his mom's rules can work for everyone.
Callie helps Daphne prepare for an official visit with her daughter. Callie makes a desicion that could change lives. Jesus is offered to attend a top-rated wrestling school. Brandon and his band play a "pharm" party. With Mariana urging, Stef and Lena consider Ana's proposal.
Stef's plan to adopt Callie involves questionable methods; Lena has conflicting emotions over expanding the family; Brandon's musical dreams may come at a price; Jude faces dire consequences when he breaks the rules.
Callie faces another barrier on her road to a better future. Lena opens up to Monte about her troubles at home; Mariana makes inquiries about letter Ana wrote to family members; Jude deals with the consequences of using poor judgment.
When the family takes a vested interest in AJ (guest star Tom Williamson, "Switched at Birth"), Callie has doubts about whether she can trust him. Meanwhile, Jude has trouble moving on from the trauma of the shooting incident.
After 20 years of estrangement, Lena's brother Nate comes for a visit. When Lena's half-brother Nate comes for a visit with Lena and her parents, Lena aims to get an apology for an offensive name he called her mother years ago. Meanwhile, Cole invites Callie, Jude and Connor to an LGBTQ prom.
Callie convinces Brandon to head out on a mysterious trip that brings them to Mexico. Stef and Lena discover an empty pregnancy test box in the trash and wonder if someone in the house is worried they are pregnant.
Callie thinks she's celebrating her 17th birthday with just the family, but Jude surprises her with a house party. Jude's surprise risks exposing both Callie's and Mariana's secrets when he innocently invites Rafael and Wyatt to attend. Meanwhile, Brandon's suspicions about AJ's behavior come to a head, and Mariana and Callie decide to buy a car together without telling their moms.
Stef and Lena hesitate to give their blessing when Mariana's biological grandfather tells her she must be baptized in order to be her new half-sister Isabella's godmother. Callie's actions at her birthday party are called out by Stef, and they make a big decision in order to avoid jeopardizing her adoption.
When Rita's daughter shows up unexpectedly, Callie sees a different side of Rita and learns the reason behind their strained relationship. Stef discovers a new lead in the hit-and-run case. Brandon confronts his moms about the tensions in the house.
The family heads to Idyllwild for Brandon's music competition where long-held feelings are revealed and life-changing secrets are unveiled. Callie finds herself in danger of being hurt when she questions Carmen and Brooke's motives directly. Mike witnesses an unexpected connection that may support Stef's theory for finding the hit-and-run driver.
Amid tensions in their own relationship, Stef and Lena host a 40th anniversary party for Lena's parents. Callie faces the judge who will determine the consequences of her actions, all while holding a secret that could change everything. Meanwhile, Mariana decides that she must find a way to repair her relationship with Mat.