As the family deals with the aftermath of the terrible car accident, Stef is determined to find the driver responsible for the crash. Callie continues to volunteer at the drop-in center where she meets AJ, a foster teen runaway searching for his older brother. Brandon starts at the Idyllwild Music Program and quickly realizes that he will be faced with serious competition. Meanwhile, Jude tells Connor he prefers to keep their relationship private at school.

Amid tensions in their own relationship, Stef and Lena host a 40th anniversary party for Lena’s parents.

Callie is now officially adopted into the Adams Foster family and must put aside any romantic feelings for Brandon. She does so by throwing herself into her “Fost and Found” website, even drawing the interest of an investor.

Callie and the family set up a “Justice for Jack” booth at a music festival in order to gather signatures to stop Justina’s foster care bill, but Callie’s persistence in advocating for both Jack and Kyle lands her in a dangerous situation. Additionally, Callie’s efforts are sidelined when the tensions between her boyfriend AJ and her friend Aaron come to a head. Mariana, still taking Jesus’ ADHD prescription medication, sees Nick and runs away from the festival, sending the family into a frantic search for her. Meanwhile, Stef discovers that her inquiries into Kyle’s case will have repercussions at her job.

Callie faces a life-changing decision to take a plea deal and go to jail for three years, or go to trial and risk an even longer sentence. Even though Callie struggles with her own situation, she tries to help Diamond out of hers which becomes extremely dangerous. With only 24 hours to make a difference in Callie’s case, Stef and Mike ramp up their investigation into the Martha Johnson murder bringing in as many leads as possible. Lena confronts Drew about his campaign to make a major change at Anchor Beach Community Charter School, while Mariana rallies her fellow students to protest. Meanwhile, Jesus starts to put together the pieces about Emma.

Stef frantically searches for Callie after she offers to help Diamond, thinking she has nothing to lose after accepting the plea deal. Struggling with his TBI, Jesus unleashes his anger after discovering Brandon helped Emma with a deeply personal decision. With Mariana leading the charge, protests continue over Anchor Beach Charter’s privatization.

It’s graduation day for Callie and Brandon, but after some shocking news, the family wonders whether they will make it to the ceremony.