Zhou Ming, a master of traditional Chinese medicine, had a car accident and traveled to Forty-Nine City in 1943, when the mountains and rivers were shattered and the Japanese invaders were rampant. He relied on his superb medical skills to deal with the Japanese and traitors, and used the storage space bound by the system to search for enemy strategic materials to support the underground party. At the same time, he delivered key intelligence to the military commander and the underground party. Using needles as blades and medicines as fronts, in the wars of troubled times, Zhou Ming used the kindness of a doctor to write a legend of national salvation, and composed a passionate song on the edge of life and death.