Zheng Ning, a lieutenant at the border gate of Chang'an, was struck by thunder at night. When he opened his eyes, he fell from the military camp of the prosperous Tang Dynasty into the modern Jiangcheng city a thousand years later. The silver armor was replaced with coarse cloth, the city towers became high-rises, the horseless "iron box" flew through the streets, and the "square" in the palm of the hand could transmit sounds thousands of miles - this bizarre world left the iron-blooded captain who had experienced the battlefield at a loss. Fortunately, the enthusiastic young man Zhang Jiurong took him in, and from then on he started the hilarious road of survival of "ancient people entering the modern era". He learns traffic rules, how to use electrical appliances, and understands the ways of the world. In the sparks of the collision between ancient and modern times, he searches for his way home while creating a new life of his own in a strange world.
