Zhou Yuan, a modern retired special forces soldier, lost his comrades in an anti-terrorism mission and suffered from mild post-traumatic stress disorder. After retiring, he lived in seclusion in the countryside, but died saving a child who fell into the water. When he woke up, he became the lowest-level pawn at the northern border of the Yong Dynasty - Dunbing, stationed at an abandoned beacon tower along the Great Wall, a deserted place with a radius of hundreds of miles. The original owner was framed and sent here, and people around him thought he wouldn't survive the winter. However, Zhou Yuan relied on modern wilderness survival skills and military knowledge to survive the desperate situation, and gradually renovated the beacon tower, opened up wasteland for farming, and trained militiamen. He originally wanted to silently protect the peace of the country, but there are too many secrets hidden in the wind and sand at the border: alien cavalry, corruption of military supplies, and intrigues between the DPRK and China... In the end, this pawn will use his own way to rewrite the fate of the entire northern border.
