明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东(dōng )厂为宦官把持(chí )，混(hún )淆(xiáo )黑白，陷害忠良，朝野内外噤若寒(hán )蝉。时有赵怀安（李连杰 饰(shì )）等(děng )流亡(wáng )剑客挺身而出，接连铲除东(dōng )厂数名奸佞，致(zhì )令阉贼胆战心(xīn )惊。适值此时(shí )，风(fēng )头正劲的西厂