Two couples on a picnic are attacked by a gang of vicious bikers, who beat up the men and rape the women. One of the men finds out who the bikers are, arms himself and goes after them.。马可原是北京寄宿学校的优等生,父亲车祸去世、家庭破产,他随妈妈转学到滨海小城的普通中学。被称为“坏孩子四人组”的几个同学其实都很仗义各有优点,从对峙到互相帮助,马可和“坏孩子、好孩子”同学们一起成长。。