明朝成化年间，朝纲腐败，奸邪当道。西厂东厂(chǎng )为宦官把(bǎ )持，混淆黑白(bái )，陷害忠良，朝野(yě )内外(wài )噤若寒蝉(chán )。时(shí )有赵(zhào )怀(huái )安（李连(lián )杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉(yān )贼胆战心惊。适值此时，风头正劲的西(xī )厂