Stef starts a new assignment in human trafficking where she meets a teenaged girl named Diamond who is turning tricks on the streets. Lena deals with repercussions for holding an off-campus LGBTQ sex ed class for Anchor Beach students. Callie’s relentless pursuit of justice starts to impact her relationship with AJ. Meanwhile, Mariana tries to cheer up Jesus with a special project after he’s prescribed a special pair of glasses due to his traumatic brain injury.

It seems just about everyone in the Adams Foster household has a secret, but unfortunately for each of them, they all start spilling out. With Callie’s court date inching closer, Robert’s attorneys present a defense strategy that Callie vehemently opposes. Monte and Lena join forces to stop Drew’s underhanded dealings. Stef works to bust Diamond’s pimp. Jesus asks Gabe to keep a secret from his moms.

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.

Callie and Aaron go on their first official date. Mariana and Jude spearhead an underground school newspaper. Noah and Jude question their compatibility, while Brandon and Grace take their relationship to the next level. The moms have their new neighbors over for a family dinner party.

Callie actively helps to make Ximena’s fight visible. Meanwhile, Brandon and Grace struggle to be intimate knowing her diagnosis and Mariana is suddenly courted by multiple suitors.

Callie and her friends support Ximena in a big way at a conservative anti-immigration rally and get a lot of buzz for Ximena’s plight. Meanwhile, an unlikely source offers a key piece of evidence that may help save Anchor Beach from going private and the family celebrates Stef’s birthday.