明朝成化年间，朝纲(gāng )腐败，奸邪当道。西厂东(dōng )厂(chǎng )为宦官把持，混淆黑白，陷害(hài )忠良(liáng )，朝野(yě )内外噤若寒(hán )蝉。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(jiān )佞，致令阉贼胆战心惊。适值(zhí )此时(shí )，风头正劲(jìn )的西厂