明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东厂为宦官(guān )把(bǎ )持，混淆黑白，陷害(hài )忠(zhōng )良，朝(cháo )野(yě )内外噤(jìn )若寒蝉(chán )。时有赵怀安（李连杰 饰）等流亡剑客(kè )挺身而出，接连铲除东厂数名奸佞，致令阉贼(zéi )胆战(zhàn )心惊。适值此时，风头(tóu )正(zhèng )劲的西厂