明朝成化年间，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷害忠(zhōng )良(liáng )，朝(cháo )野(yě )内(nèi )外噤若寒蝉。时有赵(zhào )怀(huái )安（李连杰 饰）等流(liú )亡剑(jiàn )客挺身而出，接连铲除东厂数名(míng )奸佞，致令阉贼胆(dǎn )战心惊。适值此时，风头(tóu )正劲的西(xī )厂(chǎng )