Stef frantically searches for Callie after she offers to help Diamond; Jesus struggles with his TBI and unleashes his anger after discovering Brandon helped Emma with a deeply-personal decision; and protests continue over Anchor Beach Charter's privatization, with Mariana leading the charge.
Callie gets control of her life and applies to audit art classes at a local college. Jesus distances himself from Mariana and Brandon so he can build his treehouse with Gabe alone. The Fosters get a new neighbor.
Callie and Aaron go on their first official date; Mariana and Jude spearhead underground school newspaper; Noah and Jude question compatibility; Brandon and Grace take relationship to next level; new neighbors come over for a family dinner party.
The Fosters kids attend a party at the Derby warehouse, but things escalate quickly when the cops show up. Lena struggles when Stef starts to become obsessed with an ongoing case at work, meanwhile Brandon's relationship with Grace is put into jeopardy witch Courtney back in his life.
Callie is torn with turning over a new leaf or supporting a cause that means a lot to her, while Jude and Taylor begin making gaming videos that earn them unwanted notoriety. Stef makes major headway in her case.
Callie and her friends create buzz for Ximena's plight at an anti-immigration rally; an unlikely source offers a key piece of evidence that may help save Anchor Beach from going private; the family celebrates Stef's birthday.