Dr. Casey (Michael J. Fox) and J.D discover the toilet the Janitor installed on the roof, which earns the name "epiphany toilet" after every Sacred Heart staff member finds a solution to a problem or a revelation after using it. Dr. Kelso closes down an entire wing of the hospital to save money; Dr. Cox and Carla fight back by using his own office as a patient room. Turk asks J.D. to be his best man, but J.D. is hurt to discover that he wasn't Turk's first choice. Noticing how helpful Dr. Casey has been to her fellow staff, Elliot seeks advice from him on intubation after she botches the procedure.