明朝成化年间，朝纲腐败，奸邪当道。西厂东厂为宦官(guān )把持(chí )，混淆黑白，陷害忠良，朝(cháo )野(yě )内外(wài )噤(jìn )若寒蝉(chán )。时有赵(zhào )怀(huái )安（李连(lián )杰 饰）等流亡剑客挺身而出(chū )，接连铲除东厂数(shù )名(míng )奸佞，致令阉(yān )贼胆战心惊。适值此时，风头正劲的西厂