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.

After being given the all clear to head home, tensions are still running high in the Adams Foster household. Fragile and skittish from the school lockdown.

In the aftermath of the school lockdown, Mariana is called out by other students who blame her for Nick's actions. Callie is also taunted at school and her inappropriate reaction gets her suspended.

Callie starts her senior project of photographing the outside of her and Jude's seven former foster homes. Callie decides to reach out to other people who have fostered her.

Lena is excited that her family is coming together to throw her a 70s-themed 40th birthday party.

Lena is shocked by the news that her dad has been hiding something that directly puts them all in jeopardy.

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.

Mariana and Jesus compete in the First Robotics Southern California Regionals, but when Mariana gets too competitive under the stress, Lena grows alarmed.

Brandon travels to New York City for his Julliard audition and meets a girl who forces him to take a hard look at his relationship with Cortney.

Nick gets out and starts to stalk Mariana, prompting Jesus to stand up against his former friend. AJ becomes jealous when Callie starts to hang out with Aaron more often. Brandon is stressed over the Julliard Acceptance letter.

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.

Already stretched thin, the mums receive news that Callie is in serious legal trouble. Mariana seeks comfort in Mat's arms, while Brandon tries to hold the family together.

Callie tries to keep to herself and focus on getting out of juvenile hall, but when she refuses a guard's propositions, she ends up making an enemy.

After Brandon confesses to Stef that he didn't get into Juilliard, she decides she's fed up with all of the kids' secrets and removes their bedroom doors. Mariana starts seeing a therapist to deal with the trauma of Nick's actions.

Brandon supports Emma through a difficult situation, which makes Jesus suspicious about their friendship.

Stef starts a new assignment in human trafficking where she meets a teenage girl named Diamond who is turning tricks on the streets.

As Stef works longer hours in her new position, Lena feels overwhelmed trying to keep up with the complicated lives of their five teenagers in addition to the pressures of her own job.

It seems just about everyone in the Adams Foster household has a secret, but unfortunately for each of them, they all start spilling out.

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.