明朝成化年间，朝纲腐(fǔ )败，奸邪当(dāng )道。西厂(chǎng )东(dōng )厂为宦官把持，混淆黑白，陷害忠良，朝(cháo )野(yě )内外(wài )噤若寒蝉。时有赵怀安（李连杰 饰）等流亡剑客(kè )挺身(shēn )而出，接连铲除东厂数名奸佞(nìng )，致令阉(yān )贼胆(dǎn )战心惊。适值此时，风头正劲的西厂(chǎng )