明朝成化年间，朝纲(gāng )腐败，奸邪当道(dào )。西(xī )厂东厂(chǎng )为宦官把持，混淆黑白(bái )，陷害忠良，朝野内外噤若(ruò )寒蝉(chán )。时有赵(zhào )怀安（李连杰(jié ) 饰）等流亡剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊(jīng )。适值(zhí )此时，风头正劲(jìn )的西厂(chǎng )