Grey's Anatomy 17x17 "Someone Saved My Life Tonight" Season 17 Episode 17 Promo (Season Finale) - It’s wedding day for Maggie and Winston. Meanwhile, Meredith takes on a new role at the hospital, and Jo makes a life-changing decision on the season finale of “Grey’s Anatomy,” Thursday, June 3rd on ABC. Episodes can also be viewed the next day on demand and on Hulu.