明朝成化年间，朝纲腐败，奸邪当道(dào )。西(xī )厂东厂为宦官把持(chí )，混淆黑白(bái )，陷害(hài )忠(zhōng )良，朝(cháo )野内外(wài )噤若寒(hán )蝉。时有赵(zhào )怀安（李连杰 饰）等流亡剑客挺身(shēn )而出，接连铲除东厂数名奸佞，致令阉贼(zéi )胆战(zhàn )心惊。适值此时，风头正(zhèng )劲的西厂