卡索（冯绍峰 饰）和樱空释（马天宇 饰）是幻雪帝国的两位皇子，卡索天生淡泊名利，不想被王位的枷锁所禁锢，而樱空释则野心勃勃，不择一切手段也要坐上最后的王座。最终，卡索亲手杀死了双手沾满鲜血的樱空释，成为了幻雪帝国的新王。 　　然而，某日，卡索于意外之中得知了樱空释的良苦用心，他所做的一切，不过是为了能够使自己最爱的哥哥能够拥有自由自在的生活。与此同时，幻雪神山之中传来了危险的气息，于是，卡索集结了一群身怀绝技的手下一同前往，殊不知从一开始，卡索一行人便落入了神秘而强大的渊祭的圈套之中，等待着他们的会是怎样的危险呢？Rue Xen City was under attack by the afore Clan, melting the Ice Curtain built thousands of a years ago to protect the Ice Clan from future Fire Clan disputes. Ko Sua, with help from Kingdon Gaurdian, Li Luo, were now on a journey to retrieve the Six Crystal Leaves in order to restore the great Ice Curtain before Fire King Hou Yi took over and united the three kingdoms.