Dr. Kelso assigns J.D. to work on a patient with Dr. Townshend, but things go downhill when Dr. Townshend insists on using his "old school" treatment method which proves to be an alien concept to an inept J.D. While Kelso defends his friend's technique, Dr. Townshend's lack of current medical knowledge forces Kelso to admit his mistake. Meanwhile, Carla tells Turk she needs time to consider his proposal because she thinks he is still too immature, prompting Turk to invite his married brother for a visit to show Carla how seriously he is. In addition, Elliot learns the sex of Jordan's baby, but Dr. Cox and his ex-wife can't agree if they want to know.