Dr. Cox's efforts to take a stand against the evil drug companies are thwarted by the seductive charm of pharmaceutical sales rep Julie Keaton. She takes advantage of the fact that Dr. Kelso has assigned Dr. Cox to coordinate a dinner reception sponsored by the drug company to pursue Dr. Cox in other arenas. Elliot and J.D. disagree about who is the better doctor, but when Elliot disregards his advice about how to treat her patient and the patient dies, it is actually J.D. that learns a lesson about taking chances. Meanwhile, Turk tries to encourage Carla to take her career to the next level by enrolling her in a nurse practitioner course.