明朝成化年间，朝纲腐败，奸邪当道。西厂东(dōng )厂为宦官把持，混淆黑(hēi )白，陷害忠良，朝(cháo )野内外噤若寒蝉。时(shí )有赵怀(huái )安（李连杰(jié ) 饰）等流亡剑客挺(tǐng )身而出(chū )，接连铲除东(dōng )厂数名奸佞，致(zhì )令阉(yān )贼胆战心惊。适值(zhí )此时，风头正劲的西厂