明朝成化年间(jiān )，朝纲(gāng )腐败，奸邪当道(dào )。西厂东厂为宦官把持，混(hún )淆黑白，陷害忠良(liáng )，朝野内外(wài )噤若寒蝉。时有赵怀安（李连(lián )杰 饰(shì )）等(děng )流亡剑(jiàn )客挺身而出，接连铲(chǎn )除东厂(chǎng )数名奸(jiān )佞，致令阉贼胆战心惊。适值此时(shí )，风头(tóu )正劲的西厂