明朝成(chéng )化年间，朝纲腐败，奸邪当(dāng )道。西(xī )厂东(dōng )厂为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若寒(hán )蝉。时有(yǒu )赵怀安（李(lǐ )连杰 饰）等流亡剑客挺身(shēn )而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适(shì )值此时，风(fēng )头(tóu )正劲的西厂(chǎng )