明朝成化年间，朝纲(gāng )腐败，奸邪当道。西(xī )厂(chǎng )东厂为宦官把持，混(hún )淆黑白，陷害忠良(liáng )，朝(cháo )野内外噤若(ruò )寒蝉。时有赵怀安（李连杰 饰）等流亡剑客挺身而出，接连(lián )铲除东(dōng )厂数名奸佞，致令阉(yān )贼胆(dǎn )战心惊。适值(zhí )此时，风头正劲的西厂