明朝成化年间，朝纲腐败，奸邪当道。西(xī )厂东厂为宦官把持，混(hún )淆黑白，陷害(hài )忠良，朝野(yě )内外噤若(ruò )寒蝉。时有赵(zhào )怀安（李连(lián )杰 饰(shì )）等流亡剑客挺身而出，接连铲(chǎn )除东(dōng )厂数名奸佞，致令阉贼胆战(zhàn )心惊。适(shì )值此时，风头正(zhèng )劲的西厂