Davia visits home and is forced to face her hometown demons. Gael and Isabella cope with the fallout of their unhappy encounter. Mariana and the FCGs have to decide between prioritizing morals or profits for the success of their business.
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.