宋(🌠)末蒙古蒙(⛲)哥大汗南下(xià )侵(qīn )宋(sòng )(🐌),途中遇到(dào )飞(😘)天炮(pào )阻(🛍)击身(shēn )受重(chóng )伤。后法王虽偷(tōu )得(dé )飞天(tiān )炮(🍖),然(🏴)蒙哥伤(shāng )(🥩)势加重,只得(👋)撤(⏬)兵。返程中(🏇)被忽必(bì )烈(liè )偷(tōu )袭,逃入雪(xuě )(👑)山。蒙(🗄)哥感(🎡)到命不久已(yǐ ),写下(xià )血书,传位尚年幼王子海都后自(🍮)尽。大(😻)雪(🚸)山中人(🐶)马(🥀)走散(sàn )(🤯),飞天炮(pào )和(hé )血书失踪,海(hǎi )都逃出雪山(shān )后遇(yù )到受伤(🔢)的法王,原来他受到中原三大高(gāo )(🔝)手(✋)的袭击(🙌),他们一起(qǐ )(㊙)返回雪山找寻其它队伍但(dàn )是雪山迷宫使他们放弃。与(yǔ )此同时三大(dà )高手也感无力进(🕯)入雪山,将进(❕)雪(💝)山迷(mí )(💔)城的地图(👊)分成三份交各人保(bǎo )存。法王(wáng )带(dài )着海都(dōu )勉强到达师弟银枪(🐩)法王处,将海(💿)都托付(fù )给师(shī )(📧)弟后毒发身亡。海都(dōu )从(cóng )此身负(♌)夺回帝位的(🏃)重任。