明朝成化年(nián )间，朝纲腐败，奸邪当道。西厂(chǎng )东(dōng )厂为宦官把(bǎ )持，混淆(xiáo )黑白(bái )，陷害忠良，朝野内外(wài )噤若寒蝉。时有赵(zhào )怀安（李(lǐ )连杰 饰）等(děng )流亡剑客挺身而出(chū )，接连铲除东(dōng )厂数名奸佞，致(zhì )令阉贼胆战心惊。适值此时(shí )，风头正劲的西厂