Grey's Anatomy

Deterioration of the Fight-or-Flight Response

Aired May 15, 2006 · 9:00 PM ET · 44 min

Denny needs a heart or else. Izzie and George go crazy trying to get him one. Derek has the life of a friend in his hands as he operates on Burke who has been shot. Burke cannot operate on Denny after Denny's heart stopped and now Denny is in a dire condition. Cristina gets put in charge of the ER and she is worried about Burke.