明朝成化年间，朝(cháo )纲(gāng )腐败，奸邪当道。西厂东厂为(wéi )宦(huàn )官把持，混(hún )淆黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等流亡剑客挺(tǐng )身而出，接连(lián )铲除东厂数名奸佞，致(zhì )令阉(yān )贼胆战心(xīn )惊(jīng )。适值此时(shí )，风头正劲的西厂