Having difficulties training his interns, J.D. asks Elliot for help. She tells J.D. about Sean, who gave Elliot great tips based on his dolphin training that was helpful to her with her interns. Dr. Cox finds the ideal pediatrician for his son: Dr. Norris, who happens to act and look just like him. Soon however, Dr. Cox is quick to find a problem with Dr. Norris when Jack develops a cough that scares both him and Jordan.