Finding difficulties on training his interns, J.D. calls out to Elliot for some help. She indicates Sean, who gave Elliot great tips based on his dolphin training that fit perfectly for her interns. This only makes J.D. even more jealous of Elliot, but Sean is OK with it since he doesn't consider J.D. a threat. Meanwhile, Dr. Cox finds the ideal pediatrician for his son: Dr. Norris, who acts and looks just like him (besides the hand puppet thing). And Cox is quick to find a conflict with him once Jack develops a cough that freaks out both him and Jordan.