Molly announces her intention to leave for a new job opportunity, which complicates the triangle she is in with J.D. and Elliot.
J.D. decides not to starting dating again until Elliot does but then he finds out she is dating his brother (Tom Cavanagh); Turk learns he has diabetes and uses the diagnosis to gain sympathy from all his friends.
J.D. and Dr. Cox feel threatened by a patient's daughter (Julianna Margulies) who happens to be a malpractice attorney with seemingly evil intentions; Elliot tries to keep Doug away from her because of his tendency to cause malpractice cases.