'Grey's Anatomy' Boss Explains Those Cast Exits, Meredith's Romantic Milestone and Amelia's Messy Mistake

Note: This story contains spoilers from "Grey's Anatomy" Season 22, Episode 18. "Grey's Anatomy" packed an emotional punch or two with its Season 22 finale - and not just because it ended with the exit of two of its longest-running cast members. Episode 18, titled "Bridge Over Troubled Water," followed as the doctors of Grey Sloan Memorial came together to treat the victims of a bridge collapse nearby. Owen (Kevin McKidd) ended up having to save himself from drowning after his truck ended up in the water, saving himself in time to help a family to safety before returning to . . .