明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东厂为(wéi )宦官把(bǎ )持，混(hún )淆黑白，陷害忠(zhōng )良，朝(cháo )野内(nèi )外噤若(ruò )寒蝉。时有赵怀安（李连杰(jié ) 饰）等流(liú )亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值(zhí )此时，风头正劲(jìn )的西厂