During the 14th year of Tianbao in the Tang Dynasty, the sea of lanterns in Shangyuan could not cover up the crisis of the prosperous age. Li Yan, a young man in the military fort at the border, suddenly encountered the tragedy of destroying his family. His father, the commander-in-chief Li Siye, was stained with blood on Mo Dao, and the entire fort was destroyed. After a hasty escape, only a blood-stained fragment of the "Greedy Wolf Order" and a deep-seated blood feud remained. Living in the wilderness and on the verge of death, Li Yan met a slovenly and mysterious "mad beggar" in a dilapidated mountain temple. The old man seems crazy, but he possesses extraordinary skills. He randomly instructs the "Yanhang" body technique, "Hunyuan" body protection and the life-threatening "Shocking Finger" to lay the fire of martial arts for him in the way of eating the world. Armed with clues about the Nether Sect, Li Yan sneaked into the precarious city of Chang'an. In the past, there were turbulent undercurrents in the capital, power was wielding power, vassal towns were gaining momentum, and the mysterious "Netherworld Sect" was lurking like a poisonous snake, deeply connected with the court and the rebels. He wanders between the treacherous court and the dangerous world, gets acquainted with the clever Pei daughter, the fierce Turkic princess, and is also involved in the secrets of evil people and martial arts disputes. The Anshi War suddenly ignited, and the mountains and rivers were shattered. Li Yan's blood feud has not yet ended, and he has even witnessed the loss of life. His personal grievances were sublimated into the interests of his family and country. He ran around and united with Shaolin, Chunyang and other decent heroes to form the "Resistance Alliance". Together with Guo Ziyi and other loyal soldiers, he fought secretly on the bloody battlefield and behind enemy lines to turn the tide. In the baptism of blood and fire, Li Yan gradually reached the level of martial arts, and finally revealed the shocking conspiracy behind the family tragedy - the Netherworld leader actually colluded with the powerful officials in the deep palace to bring trouble to the world! In the decisive battle at the top of the Forbidden City, he used his pure martial arts and unyielding chivalrous heart to cleanse the evil atmosphere and kill the culprit with his own hands. The smoke of the troubled times has cleared, and everything is devastated. Li Yan saw through the false fame of his career and retired after his success. The hero has left no trace, leaving only a tragic song of generosity for the country and the people. The great chivalrous person cares about the common people.
