明朝成化年间，朝(cháo )纲腐败，奸(jiān )邪当道。西厂东厂为宦官把持，混淆黑白，陷害忠良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰(shì )）等流亡剑客挺身而出，接连铲除东(dōng )厂数名奸佞，致令(lìng )阉(yān )贼胆(dǎn )战(zhàn )心(xīn )惊(jīng )。适值此时，风头(tóu )正劲的西厂(chǎng )