"得(dé )赌神毕(bì )生绝(jué )技(jì )的刀仔（刘德(dé )华）在龙五（向华强）的陪同(tóng )下重出(chū )江湖，代表(biǎo )师(shī )父以赌技(jì )致力慈善事业，人称赌侠。遇到欲(yù )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，打成平手。