明朝成化年间，朝纲(gāng )腐败，奸(jiān )邪当道。西厂东厂为宦官把持，混(hún )淆黑(hēi )白，陷害忠良，朝(cháo )野内外噤若寒蝉。时(shí )有赵怀安(ān )（李连(lián )杰(jié ) 饰）等流(liú )亡剑客挺(tǐng )身而出，接连铲除东厂(chǎng )数名奸佞，致令阉贼胆战心惊。适值此时，风头(tóu )正劲的西厂