"得(dé )赌神(shén )毕(bì )生绝技(jì )的刀(dāo )仔（刘德华）在龙(lóng )五（向(xiàng )华强）的陪同下重出江湖，代(dài )表师父以赌技致(zhì )力慈善(shàn )事业，人称赌侠。遇(yù )到欲拜赌神为师号称赌圣的阿星（周星驰(chí )）后，两人互展计谋绝技(jì )，打成平(píng )手。