Taking the Northern Expedition from the Southern Song Dynasty to the Mongolian Western Expedition (1205-1225) as the historical background, it tells the story of Xiao Jingtao, a prodigal son of the Han and Liao dynasties. In the process of tracing the truth about his parents' murder, he was involved in the huge game between the Song, Jin, Mongolia and Xia. He went from persisting in personal hatred to realizing the righteousness of "protecting the civilization of mountains and rivers". After being tempered by the sacrifice of his loved ones, joining hands with brothers, and being surrounded by powerful enemies, he created his own "Jingtao Sword Technique" and revealed the "Secret Pact to Destroy the Liao Dynasty" to reverse the crisis. Finally, he completed his chivalrous nirvana with the "Hovering Blade" on the top of Mount Huashan, and became the "Jingtang Hero" who protects the spark of civilization in troubled times.
