The Fosters Season 3 Episode 20 The Fosters 3x20 Promo S03E20 Promopreview (Season Finale) - A heartbreaking loss leads to a moral quandary for .\rbr\rbrThe Fosters 3x20 Kingdom Come (Season Finale) - A heartbreaking loss leads to a moral quandary for Callie on the season three finale of “The Fosters,” airing .\rbr\rbrThe Fosters 3x20 Kingdom Come (Season Finale) - A heartbreaking loss leads to a moral quandary for Callie on the season three finale of “The Fosters,” airing .\rbr\rbrThe Fosters 3x20 Kingdom Come (Season Finale) - A heartbreaking loss leads to a moral quandary for Callie on the season three finale of “The Fosters,” airing .