明朝成化年间，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆黑(hēi )白，陷害忠良，朝野内外(wài )噤若寒(hán )蝉。时有赵(zhào )怀(huái )安（李连杰 饰）等流亡剑(jiàn )客挺身而出，接连铲除东(dōng )厂数名奸佞，致令阉贼胆(dǎn )战(zhàn )心(xīn )惊。适值此时，风头(tóu )正(zhèng )劲的西厂(chǎng )