明朝成(chéng )化年间，朝纲(gāng )腐败，奸(jiān )邪当道(dào )。西厂东厂为宦(huàn )官把持，混淆黑白，陷害忠(zhōng )良，朝野内外噤若寒蝉。时有赵怀安（李(lǐ )连杰 饰）等流亡(wáng )剑客挺身而出，接连铲除东厂数(shù )名(míng )奸佞，致令阉贼胆战心惊。适值此(cǐ )时，风头正(zhèng )劲的西厂