明(míng )朝(cháo )成(chéng )化年间(jiān )，朝纲腐败，奸邪当道。西(xī )厂东厂为宦官把(bǎ )持，混淆黑白(bái )，陷害忠(zhōng )良，朝(cháo )野内外噤若寒蝉。时有赵怀安（李(lǐ )连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂(chǎng )数名奸佞，致(zhì )令阉贼胆战心(xīn )惊。适值此时，风头正(zhèng )劲的西厂