Finding difficulties training his interns, J.D. asks to Elliot for some help. She tells J.D. about Sean, who gave Elliot great tips based on his dolphin training that fit perfectly for her interns. Dr. Cox finds the ideal pediatrician for his son: Dr. Norris, who acts and looks just like him. However, Dr. Cox is quick to find a problem with him once Jack develops a cough that scares both him and Jordan.

Dan decides to stay with J.D. for a while after their mom's new fiancée kicks him out, but after spending some quality time with him at the hospital, Dan isn't sure if he likes the cynical person his little brother has become.