"得赌神毕生(shēng )绝技(jì )的刀(dāo )仔（刘德华(huá )）在龙五（向华强）的陪同(tóng )下重出江湖，代表师父以赌技致(zhì )力慈善事(shì )业，人称赌侠。遇到(dào )欲(yù )拜赌神为师号称赌圣(shèng )的阿星（周(zhōu )星驰）后，两人互展计谋(móu )绝技，打成平手(shǒu )。