PRE-FINALE EPISODES |On April 24, Derek's sister Amelia (Private Practice's Caterina Scorsone) makes a surprise visit, while Jackson must deliver bad news to the docs. Then, Isaiah Washington returns on May 1 to bring closure to the Cristina/Burke love story ahead of Sandra Oh's exit, and word is there will be closure. In the penultimate May 8 hour, panic spreads around the hospital when the residents learn one of them is on the chopping block (we're guessing it's Shane or Leah), while Callie receives some rather distressing news.
MAY 15 SEASON FINALE | Cristina checks out of Grey Sloan for good in an emotional and, according to a source, “extremely satisfying” episode. Elsewhere, the official logline for the finale -- titled “Fear (of the Unknown)” -- touts a “life-changing decision” for Meredith and “shocking news” for one of the docs (again, we're guessing Shane or Leah). Oh, and no less than a terrorist attack causes pandemonium at the hospital, because, well, this is a Grey's finale.