J.D. is forced to show his brother Dan some tough love when he shows up in town. Carla and Turk pick baby names. Dr. Cox realizes the consequences of making negative comments about Kelso's son.
J.D.'s brother Dan pays a surprise visit, during which he's disappointed to learn that Elliot isn't into him like J.D. had suggested. Elsewhere, Turk slips up when he confides to J.D. the top secret baby names Carla has chosen.—Alex