This riveting Oscar-nominated documentary offers an unfiltered look at a revivalist subculture where devout Christian youngsters are being primed to deliver the fundamentalist community's religious and political messages. Building an evangelical army of tomorrow, the Kids on Fire summer camp in Devil's Lake, N.D., is dedicated to deepening the preteens' spirituality and sowing the seeds of political activism as they're exhorted to "take back America for Christ."