明朝成化年间，朝纲腐败，奸邪当道。西厂(chǎng )东厂为宦官把持，混淆黑白，陷害忠良，朝野内(nèi )外(wài )噤(jìn )若寒蝉。时有赵(zhào )怀安（李连(lián )杰 饰）等流亡剑客(kè )挺身而出(chū )，接(jiē )连铲除(chú )东厂数名(míng )奸佞，致(zhì )令阉贼胆战心惊(jīng )。适值(zhí )此时，风头正劲的西厂(chǎng )