In the thirteenth year of Chenghe's reign in the Great Yao Dynasty, Beishuo's iron hoof trampled the capital to pieces, the mountains and rivers were overturned, and the people were hanging upside down. General Xie's family was framed and martyred. Only the young general Xie Xuanji was left. Bearing a blood feud, he hid in Jing'an camp and gathered his remaining soldiers to fight against Beishuo. With his iron bones, he held up half of the remaining rivers and mountains of Dayao. Ling Yuheng, the legitimate daughter of the Ling family in the south of the Yangtze River, carries the secret destiny of her master and the desire to help the world. She uses a needle to go north, and in the broken wall of Yanjing, she uses a golden needle to save him from the danger of an arrow wound. From then on, his fate is entangled.
In troubled times, from the confrontation of swords when they first met in Yanjing, to the mutual support at Jing'an camp; from the sharing of life and death during the surprise attack on Shaoliang, to the risking their lives to protect each other when sneaking into Dingjun Mountain, they are the most tacit companions in the war. He is the god of war who is bathed in blood in front of the battle. The point of the sword is the righteousness of the family and the country, and the blood feud between father and brother; she is the medical fairy behind the tent who saves lives. Wherever the silver needle reaches, it is the well-being of the people and the aspiration of the heart. There are traitors and sycophants in the court who are causing trouble, Beishuo is eyeing them, and under internal and external troubles, they use flesh and blood as a boat, affection as a crutch, and strategy as a sail, and they go against the trend in the troubled times.
There are lingering whispers in front of the camp lamp, and there are side by side charges on the battlefield; there are both heart-wrenching misunderstandings, and there is also the persistence of life and death. The injustice of the Xie family has been cleared up, and Dayao River and Mountain are fighting for recovery. They use each other's strength to gather the loyal and good people in the world, kill Beishuo's powerful enemies, and treacherous traitors in the Qing Dynasty. From the youthful spirit to the frost on their temples, from the desperate situation to the return of the prosperous age, they survived the flames of war, kept the country peaceful and the people safe, and finally fulfilled the promise: I will devote my life to you; I will embrace all the mountains and rivers with my shoulders, and we will spend the rest of our lives together without separation.