 School s out for the summer, and Gerry Garner (Aaron Schwartz) eagerly forecasts weeks of lazing around the house. That is, until his parents (Jeffrey Tambor and Nancy Ringham) inform him that they have signed him up for a holiday at Camp Hope, a "fat camp" that, unbeknownst to Gerry, is about to be bought out by mentally unhinged exercise guru Tony Perkis (Ben Stiller), and turned into a rigorous fitness facility for youths. Tony pumps the fun out of the whole summer, and, with his assistant Lars (Tom Hodges), punishes anybody who tries to break his totalitarian grip on the camp. Together with his new friends (including Kenan Thompson and Shaun Weiss) and the camp s original staff (including Tom McGowan and Leah Lail), Gerry must stop Tony s brutal regime, and take back the camp at all costs.