After moving to The Coterie in Downtown Los Angeles, Callie and Mariana realize that living on their own is not all that it's cracked up to be. Faced with new neighbors, new challenges and, of course, new romances, the sisters must depend on one another to navigate the City of Angels.
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.