Al makes Peg stop her constant shopping by taking his card away from her and by electrifying the phone so that she can't place any orders. Meanwhile, t's Jefferson's 40th birthday and he has to accept he's no longer a young man and Marcy may one day leave him. So, Marcy forces him to get a job which he does... as the new aerobics instructor at a new health club that Peggy wins a free membership pass at. Elsewhere, Gary hires Bud and Kelly to shoot a TV commercial for the shoe store. There is a role for a shoe salesman and Al forces Bud to hire him. But Al has no acting experience.

Marcy wants the Bundys to stay indoors because her "identical" cousin Mandy is coming for a visit and Marcy doesn't want her to be repulsed by them. Mandy's flight, however, is early and she takes a cab. Since the D'Arcys are at the airport waiting for her, she comes to the Bundys. This leads to Mandy spending the day out with Al and Jefferson. Suddenly Peg and Marcy find themselves jealous.