明朝(cháo )成化年间，朝纲(gāng )腐败，奸邪当道(dào )。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若寒蝉。时(shí )有(yǒu )赵怀(huái )安(ān )（李连杰(jié ) 饰）等流亡(wáng )剑客挺身而(ér )出，接连铲除东厂数名奸佞(nìng )，致令阉贼(zéi )胆战心惊。适值此时，风头正劲的西(xī )厂