"得赌神(shén )毕生绝技(jì )的刀仔（刘德(dé )华）在(zài )龙五（向(xiàng )华强）的陪(péi )同下(xià )重出(chū )江湖，代表师父(fù )以赌技致力慈善(shàn )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）后，两人互展计谋绝(jué )技，打成平(píng )手。