明朝成化年间，朝纲腐败，奸邪当道(dào )。西(xī )厂东(dōng )厂为宦官把持(chí )，混淆(xiáo )黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉(chán )。时(shí )有赵怀安（李连杰 饰）等流亡(wáng )剑客(kè )挺身而(ér )出，接连铲除东(dōng )厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂