An assortment of moms and dads descend on their offspring at home and in the workplace. J.D.'s father is a gregarious yet lonely divorcee who's desperately trying to be just one of the guys. Elliot's folks, on the other hand, are a snooty couple whose pompous behavior dismays their daughter. Similarly rattled is Turk, unnerved by the bonding of his girlfriend, Carla, and his brassy mother. But the most vexatious parent by far is the janitor's dad.

The big day for Turk and Carla has finally arrived, but a patient holds up Turk.

With Elliot still angry at him, J.D. attempts to reconcile her with Sean as a way to make everything right again in their friendship.