J.D. is assigned to work with Dr. Kelso's ``old-school'' longtime colleague (guest star Dick Van Dyke); Turk discovers his brother (guest star D.L. Hughley) is getting a divorce.
Events demolish Turk's plan to propose to Carla; J.D. tells a patient his theory about the balance of life and death in the hospital.
Elliot discovers her new love interest (guest star Rick Schroder) is a nurse, not a doctor as she had thought. Eric Bogosian also guest stars.