S4, E4: When J.D. (Zach Braff) asks Dr. Cox (John C. McGinley) to give the residents a pep talk, Dr. Cox takes things a little too far by telling them that inevitably, they will eventually kill a patient or two, which throws the staff into a frenzy. Meanwhile, Carla (Judy Reyes) becomes so annoyed with Turk's (Donald Faison) stuffed dog Rowdy, she takes drastic measures to get rid of him. Elsewhere, Elliot (Sarah Chalke) fights for a patient to receive a heart valve, and becomes frustrated when Molly (guest star Heather Graham) steps in to thwart her efforts. Neil Flynn also stars.