明朝(cháo )成化年间，朝纲腐败，奸邪(xié )当道。西厂东(dōng )厂为宦官把持，混淆黑白，陷害忠良，朝野内外(wài )噤若(ruò )寒蝉。时(shí )有(yǒu )赵怀安（李连杰(jié ) 饰）等流亡剑(jiàn )客挺身而出，接(jiē )连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风(fēng )头正劲的西厂(chǎng )