明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东(dōng )厂为宦官把持，混(hún )淆黑白，陷害忠良(liáng )，朝(cháo )野内外噤(jìn )若寒蝉。时(shí )有赵怀(huái )安（李连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂数(shù )名奸佞，致令阉贼胆战心惊。适值此时，风头正劲(jìn )的西(xī )厂