明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂(chǎng )东厂为(wéi )宦官把(bǎ )持，混淆(xiáo )黑白，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连(lián )杰 饰）等流亡剑客挺身而出，接连铲除东(dōng )厂数(shù )名奸(jiān )佞，致(zhì )令阉贼胆战心惊。适值此(cǐ )时，风头(tóu )正劲的西厂(chǎng )