|Tom McGowan||Pat Finley|
|Aaron Schwartz||Gerald 'Gerry' Garner|
|Ben Stiller||Tony Perkis/Tony Perkis Sr.|
|Max Goldblatt||Phillip Grubenov|
|Jeffrey Tambor||Maury Garner|
|Jerry Stiller||Harvey Bushkin|
|Anne Meara||Alice Bushkin|
Gerry is not looking forward to his summer vacation, since he'll be spending it at a camp for overweight boys in order to shed pounds. Fortunately, a kindly couple, the Bushkins, run the camp and make the process fun and relaxed. However, they're soon forced to declare bankruptcy and sell the camp to Tony Perkis, a fitness fanatic who turns the camp into a living nightmare of over-the-top training. But the kids plan to fight back.