S4, E21: At his best friend's request, J.D. (Zach Braff) agrees to take Carla out to convince her that Turk is trustworthy and that she should move back home. What starts out as a friendly drink takes a turn into unknown territory when J.D and Carla take things a little too far and share a "friendly" kiss, something they both decide that Turk does not need to know about. At the hospital, Elliot (Sarah Chalke) and Dr. Kelso (Ken Jenkins) struggle to maintain their professionalism when faced with a young patient who is suffering from complications after experimenting with erectile dysfunction pills. Meanwhile, Dr. Cox (John C. McGinley) tries to find the balance between being an over-protective father while still trying to be the cool dad after his son falls off the jungle gym. Neil Flynn also stars.