来自大陆的杀手李强(周润发 饰)只身来到了美国,为了将还在家乡的母亲和妹妹接来美国一家团聚,无奈之下他只好向纽约曼哈顿唐人街的黑帮老大魏先生借钱。此时,魏先生的儿子因为在毒品交易中逃避警察而意外坠楼身亡,李强正好成了魏先生复仇的棋子。 李强被派去杀害执行这次缉毒行动的负责人斯坦警官和他的家人,当他发现斯坦警官的儿子年仅7岁时,对家人的牵挂令他怎么也下不了手。行动失败后,不仅李强的生命受到了威胁,连他原在大陆的家人也面临杀身之祸。为了逃回家乡拯救家人,李强和魏先生派来的杀手展开了一场角力!John Lee is the best hitman money can buy. But when John refuses to kill because of the seven year-old son of his target, John's bosses send someone after John to kill him and then take his place in the ring of hitmen. John then teams up with Meg Coburn to help him escape these "Replacement Killers."
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