When Malika gets in legal trouble following the Black Lives Matter disruption, Callie goes to an old friend for help. Meanwhile Mariana deals with the fallout from the arrival of the "fixer" at Speckulate, Gael helps Davia with a clapback video, and Alice finds herself in the middle of an unlikely love triangle.
Taking place a few years after the events of The Fosters, Adams Foster siblings Callie and Mariana relocate to Los Angeles to begin the next phase of their lives. As they move into a communal living apartment building called The Coterie, Callie becomes a law clerk working for Judge Wilson while Mariana becomes a software engineer. The two of them navigate their young adult lives while interacting with their neighbors and the people they befriend.