Deep in Bashan, the thousand-year-old Longgutan Road lies quietly in the mountains. This path hidden among the cliffs and dangerous peaks carries the blood and perseverance of three generations of Long family porters, and it also provides the confidence that the mountains and rivers will not be broken in troubled times.
In the third year of Xuantong in the late Qing Dynasty, when the mountains were blocked by snow, Old Master Long led his tribe on a dangerous road to deliver military supplies, and established the ancestral motto: The dragon bone beach porters only transport life-saving goods, and do not touch wealth. The road can be broken, but the spine cannot be bent. A dragon bone buckle has become a token of the roadkeepers of the past generations, carving the secret road, and also engraved with faith.
In the twenty-sixth year of the Republic of China, the Japanese army invaded China and the mountains and rivers were shattered. Long Wanshan, the second generation descendant of the Long family, took over the dragon bone buckle and became the leader of the ancient trail. He hid the truth from his family and risked his life to transport radio parts and top-secret military information. Unexpectedly, he was surrounded by traitor agents on the way, and his confidant died tragically. He was seriously injured. In order to protect the secret road and supplies, he would rather die than give in. He was imprisoned and deprived of food by the agents. He did not reveal a word of the secret until his death, leaving only a piece of bluestone and half a dragon bone fragment, leaving his loyal soul among the cliffs of the ancient road.
Long Bo inherited his father's ambition and sealed up the truth about his father's murder. He stayed dormant for three years to smooth his mind, traveled every dangerous inch of the ancient road, and became a new generation of soul keepers. In troubled times, he set off with a team of porters, escorting frontline medicinal materials and radio parts, through cliffs and misty mountains. The journey is full of dangers. The young man Long Yuanzhi learns from his youthful ignorance and understands the perseverance of his fathers in the test of life and death; his selfish defeat is influenced by faith, his hard-hearted and scarred face is redeemed by tenderness, and his uncle violates the rules of the ancient road to save the orphan, leaving Long Bo in a dilemma between rules and life.
Three generations of people have passed down the fire from generation to generation, using their faith and blood to forge the soul of the ancient road, guard the road for their family and country, and keep their backbone from falling.