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 ... (more)condition. Cristina gets put in charge of the ER and she is worried about Burke.

Brooke Smith, Hallee Hirsh, Tessa Thompson, Tiffany Hines