In November 1937, after the Japanese army occupied Shanghai, they then attacked Hangzhou and Suzhou, nearly sealing off the country's external transport lines. The only remaining international transport route, the Yunnan-Vietnam Railway, was at risk of being blown up by the Japanese anytime. Building a new international transport route, the "Burma Road," became of utmost importance for supplying wartime materials. Wang Junrong, a student who moved to the rear area of Kunming, joined the temporary road construction team organized by the National Government. After a brief training, he was sent to mobilize local people to build the road on the banks of the Nu River, at Mount Leigong and Mount Dimo along the "Burma Road." The Leigong and Dimo mountains on the banks of the Nu River are places where the local indigenous people have relied on for generations, considered by them as sacred mountains. There are temples to worship the mountain gods, ancestral halls, and tombs of generations of ancestors on these mountains. The locals could not accept the idea of carving and blasting a road that had nothing to do with them on their "sacred mountains." Therefore, the entire village began to plan and play pranks on the road workers, hoping Wang Junrong would leave and construct the road elsewhere. Just as the villagers were using various means to force Wang Junrong to leave their beloved "sacred mountain," and he stubbornly insisted on building the road there, the county civil affairs department sent a notice of the death and compensation funds for those who died in battle. All the able-bodied men from the Leigong and Dimo mountain villages who joined the Yunnan army were killed fighting the Japanese in Tai'erzhuang. Suddenly, every household in the village was engaged in mourning, with cries shaking the heavens and earth. In the face of their loved ones sacrificing themselves for the country, the village chiefs, Li Da and Yang Badai, decided to build the road, putting aside past grievances, and led the villagers to work together to construct a major transport artery to support the just war. Thus, a tragic song was played out on the Leigong and Dimo mountains, where people used primitive tools, gave all their wealth, endured hunger, sickness, and bled and sacrificed their lives to carve out roads. During the road construction, the young and handsome Wang Junrong came to understand that the ultimate road connects with the heart. In the process of connecting "road and heart," Wang Junrong and the beautiful Li Lu, the daughter of the village chief of Leigong Mountain, gradually walked toward a warm journey of "heart to heart" connection...
