Under pressure from cousin Fonzie, Chachi invites Joanie and her parents to his house for dinner to meet his mother, but worries that his eccentric family will embarrass him in front of the Cunninghams.

Potsie pressures Lori Beth for a date with her sophisticated roommate and gets an embarrassing job to pay his rent; Fonzie joins the Big Brother program and enlists Howard's help for "little brother" Joey's best-friend dilemma.