"得(dé )赌神毕生绝技(jì )的刀仔（刘德华）在龙(lóng )五（向(xiàng )华强）的陪同下(xià )重出江(jiāng )湖，代(dài )表(biǎo )师父以赌技致力慈善事(shì )业，人称赌侠。遇到欲拜赌(dǔ )神为师号称赌圣的阿星（周星驰）后，两人(rén )互展计谋绝技，打成平(píng )手。