宋末蒙古(🆓)蒙哥(gē )大汗南(nán )下侵宋,途中(zhōng )遇到飞(fēi )天炮阻击身受重(chóng )(🤴)伤。后法王虽偷得飞(fēi )(🛤)天炮,然蒙哥伤(🥩)势加重(chóng ),只得撤(chè )兵。返程(🌗)中被(bèi )(♑)忽(📼)必烈偷袭,逃入雪山。蒙哥感到(🕖)命(🕯)不(👁)久已,写下血书,传(chuán )位尚(🕌)年(🛺)幼(📞)王(🎿)子海都后自尽。大雪山中人马走散,飞天炮和血书失(shī )(🌙)踪,海都(dōu )逃(táo )(🥁)出雪山(shān )后遇(⏯)到受(🖲)伤(shāng )的法王,原(yuán )来他受到(🥔)中原(🗞)三大高手(✋)的袭击(🙌),他们一(yī )起(qǐ )返(fǎn )(👓)回雪(🙉)山找寻(xún )其它(tā )队伍但是雪山迷(🔔)宫使他们(⛳)放(😍)弃(💠)。与此同时三大高手也感(gǎn )无力(lì )进入(rù )雪山(🗳),将进雪山迷城的地图分成三(sān )份交(🦇)各人保(bǎo )(➡)存。法王带(dài )着(👪)海都勉强到达(🌼)师弟银枪(qiāng )法王处,将海都(dōu )托(🐡)付(fù )给师弟后毒(dú )发(fā )身亡。海都从(cóng )此身负夺回帝位的重(chóng )任(🏴)。