"得(dé )赌神毕生(shēng )绝技的刀仔（刘德华）在龙五（向华(huá )强）的陪同(tóng )下(xià )重出江湖，代(dài )表(biǎo )师父以赌技(jì )致力慈善事业，人称赌侠。遇到(dào )欲拜赌神为师号称赌圣的阿星（周(zhōu )星驰(chí )）后，两人互展计谋绝技，打(dǎ )成平手(shǒu )。