A nerdy high school super whiz experiments with a chemical which will transform his guinea pig "Mr. Mumps" from a gentle pet into a ravenous monster. In a fit of rage against his tormentors at the high school, Vernon Potts (Pat Cardi) goes on a killing spree, eliminating all of those who ever picked on him - the Gym Coach, the School Jock, The Creepy Janitor (Mr. Griggs) & his ...
在少数族裔聚集的加州安德森，一个星期六的凌晨，六名帮派成员被警方击毙。他们的同伙发誓为他们报仇。同一天的下午，警督毕邵普（Austin Stoker 饰）受命看守一间即将废弃的警局，另一方面，在加州的洛克卢塞斯监狱中，以穷凶极恶的罪犯拿破仑·威尔逊（Darwin Joston 饰）为首的三名罪犯将被押解到另间监狱。复仇的帮派团伙在路上随意射杀了一名小女孩，女孩的父亲将一名匪徒杀死，随后逃到毕邵普看守的警局，此时警局当中只有毕邵普和两个女文员，加之此前不久因押解囚犯半路急病，押解车转入这间警局临时停留。此时，警员和囚犯被外面埋伏的帮派分子围堵射杀，毕邵普决定借用威尔逊的力量抵挡警局外的暴徒……
