明朝成化年间，朝纲腐败，奸邪当道。西厂东厂(chǎng )为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若(ruò )寒蝉(chán )。时有赵(zhào )怀安（李连杰 饰）等流(liú )亡(wáng )剑客(kè )挺(tǐng )身而(ér )出，接(jiē )连铲除东厂数名奸佞，致(zhì )令阉贼胆战心惊(jīng )。适值此时，风头正劲的西厂