明(míng )朝成化年间，朝纲(gāng )腐败，奸邪(xié )当道(dào )。西厂东厂(chǎng )为宦官把持，混淆黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉。时有赵(zhào )怀安（李连杰 饰）等流亡剑客挺身(shēn )而出，接连铲除东厂数(shù )名奸(jiān )佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂(chǎng )