宋(🌠)末(👷)蒙古(gǔ )蒙哥大汗南下侵宋,途(tú )中(zhōng )遇到飞天(🕟)炮(🕸)阻击(🔱)身受重(chóng )伤。后法王虽偷(🥈)得飞天炮(🍖),然蒙哥(gē )伤(shāng )势(💤)加重,只得撤兵(🎲)。返(❣)程(chéng )中(zhōng )(🏇)被忽必烈(🚤)偷袭,逃入(rù )雪山。蒙哥感到(🕖)命不(👁)久(jiǔ )已(💆),写下(🥄)血(xuè )(🛹)书(🚉),传(🚥)位尚年幼王(🎿)子海(hǎi )都(🗑)后(hòu )(😚)自尽(jìn )。大雪山中人马走(zǒu )散,飞天炮和(hé )血书失踪,海都逃出雪山(shān )后遇到(dào )受伤的法王(wáng ),原(🎛)来他受到中原(🗞)三大(dà )高(gāo )手的袭击,他们一起返(👓)回雪山(💪)找寻其(⏰)它队伍(wǔ )但是(shì )雪(xuě )山迷宫使他们放弃。与此同(🤳)时三大高(🐀)手也感无力进入雪(xuě )山,将(🈁)进雪(💝)山迷城的地图分成(chéng )三份(fèn )交(jiāo )各(gè )人保存。法(🌹)王(⛏)带着海都勉强到达师弟银(yín )枪法(fǎ )王(😝)处(chù ),将海都托(🐡)付给师弟后毒发身亡。海都从此身负夺(duó )回帝位的重(chóng )任。