Jordan and Dr. Cox worry about Jack's slight cough and try to get him seen by the hospital's own pediatrician, Dr. Dave Norris, who is as obnoxious as Dr. Cox. The residents get their own interns and the inevitable problems that come with them: Turk is too heavy-handed, J.D. fails to assert his authority, and Elliot continues to deal with her own insecurities. J.D. reluctantly accepts help from Elliot's boyfriend/dolphin trainer Sean.