In the spirit of Paul and the early apostles, Josh and his sister Christal spend an entire Sunday walking through a quiet neighborhood, hoping they can inspire people to believe in Jesus through their door-to-door evangelism.But in their well-meaning efforts to save people from the burning cauldron of hell, the religious proselytizers are soon testing the depths of their own beliefs when they try to indoctrinate a clever exhibitionist, a charming sex addict, a well-educated atheist, a romantic agnostic, two lesbians in love, a witty serial killer, and other "infidels."