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.