改编自经典国产游戏《轩辕剑叁外传:天之痕》。陈国最后一个皇子陈靖仇(蒋劲夫 饰)不务正业游手好闲,他在遇到了北方挞拔族二公主拓跋玉儿(刘诗诗 饰)之后命运发生改变,为解救师傅陈辅(高雄 饰)和众陈国遗民被迫走上了寻找上古五神器报仇复国的道路。北周皇室后裔宇文拓(胡歌 饰)与陈靖仇命运相似性格却完全不同,在红颜知己宁珂(唐嫣 饰)的帮助下他化身为“剑痴”,与靖仇和玉儿一起寻找五神器,随后他们又遇到了女娲之女于小雪(古力娜扎 饰),挞拔族国君张烈(林更新 饰),6个人之间产生了复杂的感情纠葛。但是事情远不如他们想象中的简单,天之痕的出现使大家各具新的使命,谁才是真正的大地皇者?宁珂的真实身份到底是什么?Two descendants, Yuwen Tuo and Chen Jing Chou, and their plans to recover the Northern Zhou and Chen Dynasties, their respective heritages, by finding several mystical powerful weapons. These weapons also help in closing up the doorway that demons use to enter and wreak havoc in the mortal world. An unlikely friendship forms, yet they are fated to be enemies. Chen Jing Chou's adventures lead him to befriend a lot of different people, such as Yu Xiao Xue and Tuoba Yu'er, while Yuwen Tuo meets Dugu Ning Ke, a supposedly spoiled princess with a mysterious heritage. Their adventures are filled with misunderstandings and emotional entanglements. In the end, will they sacrifice their personal loves for the greater good, and seal up the rift in time?