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

The kids attend a festival. Ana wants to make amends with the twins.

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

Callie, a 16-year-old girl fresh out of juvenile hall, goes to live in the care of Lena and her partner Stef and their kids.

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.

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

Brandon struggles with a major medical decision. Stef seeks answers on Mike's whereabouts.

After Callie and Jude discover Jack is being abused by other boys in his group foster home, they turn to foster care advocate Justina to get him help. Jesus attempts to get to know Gabe at work even as Nick urges him to tell Gabe the truth about who he is. Meanwhile, Mariana is surprised when Nick asks her out.

Callie worries about how her actions have impacted Jude. Emma puts Jesus in an awkward position.

Dani deals with the consequences for what happened with Brandon. Jude and Callie spend the day on the Quinn's yacht.

Callie returns to the Girl's United home to deal with lingering issues. Mariana and Jesus plan a group dinner for Mat and Hayley.

When Jesus’s birth father, Gabe, doesn’t show up to work on Stef and Lena’s garage, Jesus takes on the job himself and gets injured in the process. An exhausted Mariana, deep into her robotics STEAM project, takes Jesus’ ADHD medicine for a boost. Callie and AJ find themselves in an awkward situation when Mike and Brandon unexpectedly come home early. Meanwhile, Stef lets Mike know that Brandon gave his hand injury settlement money to Cortney.

In the aftermath of Jesus’ fight with Nick over Mariana, Jesus is knocked out. On the way to the hospital, things take a turn for the worse, leaving him fighting for his life. Meanwhile, Callie finds herself in a dangerous situation after taking a ride with Troy and Mariana is guilt-ridden over the fact that her actions led to Jesus’ current condition.

Brandon throws a party which turns south when secrets are revealed. Mariana and Jude try to convince the students to vote against their school going private.

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 receives a surprising tip from an unexpected source. Meanwhile, Jude tries to assuage Noah’s fears about his budding relationship with fellow gamer Declan.

One year later, the Adams Fosters comes together for some major celebrations.

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

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.

Lena is excited that her family is coming together to throw her a 70s-themed 40th birthday party. But, when Lena’s mom Dana shares her suspicions about Stewart’s behavior, it threatens to put a damper on the festivities. Convinced her former foster brother Kyle has been wrongly convicted of murder, Callie and Aaron try to track down a witness in the case. Mariana and her female STEAM club teammates compete for an invite to the Regional Robotics Competition. Meanwhile, Jude is hurt to discover that Connor came to town and didn’t tell him, and Brandon considers drastic measures to make extra money.

Lena is shocked by the news that her dad has been hiding something that directly puts them all in jeopardy. Additionally, she uncovers a major secret that Brandon has been keeping. Mariana continues to be pressured by Nick and must deal with direct opposition from the male members on her STEAM team. Meanwhile, Jesus grows resentful of Emma’s behavior, and Jude discovers Noah has a medical marijuana card.

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.

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.

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.