明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东(dōng )厂为宦官把(bǎ )持，混(hún )淆黑白，陷(xiàn )害忠良，朝(cháo )野(yě )内(nèi )外噤若寒蝉。时有赵怀安（李连杰 饰）等(děng )流亡剑客挺(tǐng )身(shēn )而(ér )出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风(fēng )头正劲的西厂