"得赌神毕(bì )生绝技的刀仔（刘德华）在龙五（向(xiàng )华强）的陪同下(xià )重出(chū )江湖，代表师父以赌技(jì )致力慈善事(shì )业，人称赌侠。遇到欲拜赌神(shén )为师(shī )号(hào )称(chēng )赌圣的阿星(xīng )（周星驰）后，两人互展(zhǎn )计谋绝(jué )技，打成平手。