"得(dé )赌神毕(bì )生绝技的刀仔（刘德(dé )华）在龙(lóng )五（向华强(qiáng )）的陪同(tóng )下重出江(jiāng )湖，代表师父以赌技致力慈善事业(yè )，人称赌(dǔ )侠。遇到欲拜(bài )赌神为师号(hào )称赌圣的阿星（周星驰）后，两人互展(zhǎn )计谋绝技，打成平手。