The masters sent by the Song Dynasty to perform secret missions in the Liao Kingdom were killed one after another. The peerless master Hu Zhanfeng who succeeded him was ambushed and was in critical condition. Fortunately, he was rescued by a hunting boy Shi Zhongyu. Shi Zhongyu caused a big disaster. His house was burned down, his mother died tragically, and his childhood sweetheart was kidnapped. In order to avenge the blood, he had to agree to follow him. Hu Zhanfeng went to the Liao Kingdom as an undercover agent. From then on, he went undercover with the general, the traitor inn, and the bandit leader. He reported the top-secret information about the Liao people's sneak attack on the Song Dynasty to the emperor of the Song Dynasty, but was thrown aside. As a result, Chanzhou was besieged and Bianjing was in danger; in the critical moment, At this moment, Shi Zhongyu led the civilian army, burned the Liao army's food and grass, harassed the Liao army's retreat, and burned the war into the territory of the Liao Kingdom. The inexperienced Shi Zhongyu not only had to lead people to resist foreign invasion, but also faced all kinds of female spies. His gentle wife actually poisoned his wine, and martial arts masters secretly formed an assassination team. Qingmei The lover of the bamboo horse openly changes his heart, the hero he admires in his heart is poisoned and assassinated, and the famous general turns out to be the leader of the mountain bandits - the female spy is like jade, but she has a poisonous plot; the master and the apprentice have a deep love, but the yin and yang are separated; the hatred of the country and the family, no one is lighter or more serious? With a sword in his hand, the mountain village boy finally becomes a Chinese hero!