The Fosters are getting married, but Stef is not as involved as a stressed out Lena would like.

A family gathering brings Callie back into the Fosters' home for the first time since she ran away.

Mariana and Jesus deal with the repercussions of their actions.

Callie meets her grandfather, which gives her a new perspective on Robert. Meanwhile, Mariana gets ready for a crucial dance-team showdown; and Jude stands up for a friend.

As Brandon debuts his “Romeo and Juliet” rock musical, moments in the production are hitting home for the Adams Foster family, causing them to look back at recent events.

Callie admits her past relationship with Brandon to her moms. But before Stef and Lena can even process the information, the school goes into a “Code Blue” lockdown when it’s discovered Mariana’s boyfriend Nick showed up with his father’s gun after seeing her kiss her ex-boyfriend Mat.

Callie meets a woman who works in the foster care system; Brandon reveals why Callie ran away.

Stef and Mike deal with the fallout from a shocking revelation; Brandon makes another bad decision.

Mariana finds it difficult to deal with impending changes at home and focuses her attention on organizing a student protest over an administrative incident at school. Meanwhile, when she learns Kiara is back in town and on the streets, Callie is willing to do anything she can in order to help her friend, even if that means disobeying Stef’s orders and putting herself in danger. Jude finally confronts Connor over the mixed messages he’s been sending, leading to a make-or-break moment in their friendship.

Callie asks her biological father for a favor; Connor is pressured to end his friendship with Jude.

The family heads to Idyllwild for Brandon’s music competition where long-held feelings are revealed and life-changing secrets are unveiled.

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.

Everyone is celebrating Mariana's quinceanera, and the secret Jesus has been hiding comes to light, which causes tension between Mariana and Lexi.

Stef and Lena try to find time to work on their relationship, while Lexi and Jesus have to deal with the consequences of their actions.

Lexi's parents punish her when they find out the truth about Lexi and Jesus.

While Lena and Stef are away on a babymoon, the kids throw a party that gets out of hand.

Lena learns about a medical issue affecting her pregnancy. Stef confronts Mike about Ana.

Callie confronts demons from the past; Mariana worries about the future of Ana's baby; Jude deals with the repercussions of his poor decision; Lena discusses her domestic troubles with Monte.

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.

Mike asks Brandon to move in with him, and Jesus and Lexi continue to keep their relationship a secret from Mariana.

Stef and Lena have dinner with Lena's ex.

The family is impacted by Callie's decision to run away; Mariana learns the truth about Lexi's trip.

Lena worries when Stef returns to work; Kelsey exposes secrets from Mariana's past.

Stef and Lena visit Callie; Jude must decide if he wants to be a part of the Foster family.

Mariana and Jesus worry about dates as the Winter Ball approaches; Zac's mother visits Lena.