Two years after a high-school prank involving flesh-eating acid nearly kills popular teacher Mr. Balszack, the graduating class of Sloppy Secondary holds a ’24-Hour Famine’ charity event on school grounds. But there’s an uninvited guest at this event, masquerading as the school’s handyman mascot, and he’s got an insatiable hunger of his own.

"Thirty students. Twenty-four hours. Zero survivors."