Chloe Angel is a student at Hummingbird High. Her grades are appauling, and her pranks are legendary. Her last one saw the fall of the biology wing of the school, catching in flames and burning with it the last ounce of patience that the school and her mother had for her. As a last ditch effort to avoid expulsion, Ms. Angel signs a permission slip to give Chloe and a large number of troubled youths the chance to spend a weekend at Hummingbird High with a hired ex military general, who promises that they will walk out appreciating their youth, and utilizing the minds that they have. The weekend turns killer when a voice on the intercom has a different lesson plan in mind for the teens, one that involves pain, and blood.