In the face of national calamity, the mountains and rivers are broken, and three generations of a family guard our Chinese rivers and mountains with their flesh and blood. Chang Gensheng, an old farmer on the Loess Plateau, is illiterate but has a great heart. He puts down his hoe and takes up the responsibility of his family and country, guarding his homeland with the most simple persistence; Chang Tieshan, who was once an instructor in Huangpu and a brigade commander of the national army, has experienced hundreds of battles but has seen through the authorities. Decay, when the nation is in danger, he abandons darkness and turns to light, and rushes to the light with military integrity; Chang Guoqing, a young man who devoted himself to the army, experienced the displacement in troubled times, from a student in Nanjing to a student in Huangpu, and then to a company commander of the Eighth Route Army, and was tempered into steel in the flames of war.
Three generations of grandparents and grandchildren went to frontal battlefields, base areas behind enemy lines and latent fronts. Their destinies were intertwined and they were connected by blood. There are no magic skills, no cheats, only the innocent heart and the iron bones, writing the unyielding and perseverance of the Chinese people in the fourteen years of war. A family is the smallest country, and a country is made up of thousands of families. Each family is loyal and has a soul forged with iron and blood, just to keep the mountains and rivers safe and the sun and the moon shining brightly.
