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(chí )，混淆黑白，陷(xiàn )害忠良，朝野内外噤(jìn )若寒蝉。时有赵怀安（李连杰(jié ) 饰）等流(liú )亡剑客挺身而出(chū )，接(jiē )连铲除东厂数名奸佞，致(zhì )令阉(yān )贼胆战(zhàn )心惊。适(shì )值此(cǐ )时，风头正劲的西厂