明朝成化年间(jiān )，朝(cháo )纲腐败，奸(jiān )邪当道。西厂东厂(chǎng )为宦官把持，混淆黑白，陷害(hài )忠(zhōng )良，朝野内外噤(jìn )若寒蝉。时有赵(zhào )怀安（李连杰 饰）等流亡剑客挺(tǐng )身而(ér )出，接连铲除东厂数名奸(jiān )佞，致令阉(yān )贼(zéi )胆战心惊。适值此时，风头正劲的西厂