明朝成化年间，朝(cháo )纲腐败，奸邪当道(dào )。西厂东(dōng )厂为宦官把持，混淆(xiáo )黑白(bái )，陷害(hài )忠良，朝野内外噤若寒(hán )蝉。时(shí )有赵(zhào )怀安（李连杰(jié ) 饰）等(děng )流亡剑客挺(tǐng )身而出，接连铲除东厂数名奸(jiān )佞，致令阉贼胆战心惊。适值此时，风(fēng )头正劲的西厂