Shonda Rhimes, the creative force behind Grey’s Anatomy, admits she has no concrete plan for when or how the hit medical drama will finally bow out. After entertaining viewers for two decades, the show marches on toward its next season with the creator still uncertain about its ultimate finale.

Grey’s Anatomy’s 22nd season begins amidst the fallout from a devastating hospital explosion. As the dust settles, actress Natalie Morales reveals how her character, Dr. Monica Beltran, meets a dramatic and unexpected end.