明朝成(chéng )化年(nián )间(jiān )，朝纲(gāng )腐败，奸邪(xié )当道。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝(cháo )野内外(wài )噤若寒(hán )蝉。时有(yǒu )赵怀安（李连杰 饰）等流亡剑(jiàn )客挺身(shēn )而(ér )出，接连(lián )铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正(zhèng )劲的西厂