The peerless swordsmith, Meng Yezi, suffered the calamity of family extermination from the traitor Zhao Han served in the court for casting the famous Hanguang Sword. He desperately saved his son Meng Yang and left him the unforged Chengying Sword. Twenty years later, Meng Yang grew up and tried to avenge his father. At that time, Chengying Sword had not been cast yet to compete with Hanguang Sword. Then, the emperor was dying, and by chance, Meng Yang was assigned to escort the prince Gong Zidu back to the palace to succeed to the throne. Meng Yang accepted the task to investigate the truth about his family extermination for avenge. However, he met a fatal disaster on the way...

Thousands of years later, "the Kunlun Mountain", a starship on its way to colonize a target planet, is attacked. This mysterious group of people reveals the truth about the continued failure of the human colony ship and its plans.

明，万历年间，江湖两大暗杀门派，无名门突遭血洗，唐门继承人遇刺，嫌犯张未然，不知所踪…… 数年后，独行大盗郭长生被一名神秘白衣人抓获，镖头王一刀金盆洗手之际同意护送他们一程作为最后一次押镖，路途中王一刀发现越来越多神秘高手围绕着郭长生出现。恩怨指向了十几年前江湖最传奇的门派——“无名门”的继承者大血战和消失的张未然。每个当事人对那一晚的对决都有不同的讲述。无名门在大火中消失的真相慢慢浮现，谁是当年的真凶，谁又将是之后的幸存者，到底真相如何？