明朝成(chéng )化年间，朝纲腐败，奸邪当(dāng )道。西(xī )厂东厂为宦官把持，混(hún )淆黑白(bái )，陷(xiàn )害忠(zhōng )良，朝野内(nèi )外(wài )噤若寒(hán )蝉。时(shí )有赵怀安（李连杰 饰）等流亡剑客挺身而出(chū )，接连铲除东厂数(shù )名奸佞，致令阉贼胆战心(xīn )惊。适值此时，风头正劲的西厂(chǎng )