明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂(chǎng )东(dōng )厂为宦官把持，混淆(xiáo )黑白，陷害忠良，朝野内外噤(jìn )若(ruò )寒蝉。时有赵怀安（李连杰 饰(shì )）等流亡剑客挺身而出，接连铲(chǎn )除(chú )东(dōng )厂数名奸佞(nìng )，致令阉贼胆战心惊(jīng )。适值此(cǐ )时，风头正劲(jìn )的西厂