Derek decides to quit after learning that more of his patients have died than survived; Izzie's interns make an unsettling discovery about "Patient X."
Released: 2009-03-12
Runtime: 50 minutes
Genre:
Stars: Ellen Pompeo, Chandra Wilson, Sandra Oh, James Pickens Jr., Kevin McKidd, Katherine Heigl, Justin Chambers, T.R. Knight, Sara Ramirez, Patrick Dempsey, Eric Dane, Chyler Leigh