During the Tianbao period of the Tang Dynasty, the border soldiers stationed at Langya Pass had repeated battles with Liu Yishou and other gangsters. Unfortunately, Langya Pass fell into the hands of the enemy because we were outnumbered. The border soldiers such as Liao Da and Guo Gui were brave and fearless. They launched a life-and-death struggle with the bandits, regained the Langya Pass, and used their lives and blood to protect the smooth flow of the Silk Road…