The Fosters 3×20 “Kingdom Come” (Season Finale) – A heartbreaking loss leads to a moral quandary for Callie on the season three finale of “The Fosters,” airing Monday, March 28th on Freeform. In the wake of a tragic loss, the family pulls together and searches for answers. Callie makes a shocking discovery that has her questioning her loyalties. Nick gives Mariana an expensive gift, adding to her guilt about what happened between her and Mat. Meanwhile, Brandon tells his moms that Cortney has a child, and finds himself in a predicament after her ex-husband kicks Cortney out of their apartment.