明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷(xiàn )害(hài )忠良，朝野(yě )内外噤若(ruò )寒蝉。时有赵怀安（李连杰 饰）等流亡剑客挺身(shēn )而出，接连铲除东(dōng )厂(chǎng )数名奸佞，致(zhì )令(lìng )阉贼胆战心惊。适值此时(shí )，风头正(zhèng )劲(jìn )的西厂