明朝成化年间，朝(cháo )纲腐败，奸邪当(dāng )道(dào )。西厂东厂为宦官把持(chí )，混淆黑白(bái )，陷害忠良，朝野(yě )内外噤若寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰）等流亡剑客挺身而出，接连铲除(chú )东厂数名奸佞(nìng )，致令阉(yān )贼胆(dǎn )战心(xīn )惊。适值此(cǐ )时，风头正劲的西厂