明朝成化年间，朝(cháo )纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷(xiàn )害忠(zhōng )良，朝野内外噤若(ruò )寒(hán )蝉(chán )。时有赵(zhào )怀安（李连杰 饰）等流亡剑(jiàn )客挺身而出，接连铲(chǎn )除东厂数名奸(jiān )佞(nìng )，致令阉贼胆战心惊。适值此时，风头(tóu )正劲的西厂