明朝成化年间，朝纲腐败，奸邪当道。西厂东厂为宦官把持，混淆黑白，陷(xiàn )害忠良，朝野内外噤若寒(hán )蝉。时有赵怀(huái )安（李连杰(jié ) 饰(shì )）等流亡(wáng )剑(jiàn )客挺(tǐng )身(shēn )而出，接连铲(chǎn )除东厂(chǎng )数名奸佞，致令阉(yān )贼胆(dǎn )战心惊。适值此时，风头(tóu )正劲的西厂