Grey’s Anatomy 12×24 Extended Promo “Family Affair” Season Finale

Grey’s Anatomy 12×24 “Family Affair” (Season Finale) – Meredith and Maggie support Amelia on an important day; Jo reveals that she has been keeping secrets from Alex while Arizona and Callie deal with the impact of their custody arrangement. Meanwhile, Ben leaps into action to help a friend, on “Grey’s Anatomy,” Thursday, May 19th on ABC.