明朝成化年间，朝纲(gāng )腐败，奸邪当(dāng )道。西厂东厂为宦官把持，混淆黑白，陷害忠(zhōng )良，朝野内外噤(jìn )若寒蝉。时有赵怀(huái )安（李连杰 饰）等流亡剑客挺身而(ér )出(chū )，接连铲除东厂数名奸佞，致令阉贼胆(dǎn )战心惊。适值(zhí )此时(shí )，风头正劲的西厂