Lois and Peter find out that Chris is skipping gym class because he is embarrassed about being overweight. Peter tries to talk Chris into getting liposuction. Chris declines, but Peter decides to go for it anyway. After his surgery, Peter looks better than ever. All of a sudden people are nice to Peter and are doing him favors. Lois is infuriated by Peter's behavior and gets even angrier when he joins "The Beautiful People's Club." Peter's fun doesn't last for long though. Dazed by his own beauty in the rear-view mirror, Peter accidentally drives off a cliff and goes back to the way he was.
Meanwhile, Brian has a horrible flea problem and the family has to move out while the house is fumigated. Stewie also gains weight while trying to tease Chris.