明朝成化年间，朝(cháo )纲腐败，奸邪当道。西厂东厂(chǎng )为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤(jìn )若寒蝉。时有赵(zhào )怀(huái )安（李(lǐ )连杰 饰）等流亡(wáng )剑客挺身而出(chū )，接连铲除东厂数名奸佞(nìng )，致令阉贼胆(dǎn )战心惊。适值(zhí )此时，风头正劲的西(xī )厂