Boot Camp by Todd Strasser
When Garrett's parents send him to disciplinary boot camp, Lake Harmony, he's convinced that all he has to do is follow the rules and he'll be out in no time. After all, he shouldn't really be there, should he? But his minders at Lake Harmony have other ideas. Subjected to months of physical and psychological abuse, Garrett struggles to convince them he's changed. But will he have to abandon all his convictions to do so - or is escape the only option?