In the early 1960s, Lingqian Village and Linghou Village in the mountainous area of western Henan were separated by a small river with clear water flowing all year round. Ge Changsheng from Lingqian Village and Zhao Jianguo from Linghou Village were classmate friends. Before joining the army, they got married on the same day and bid farewell to their newly-wedded wives by the river between the ridges on the same day to enlist in the army. Since then, Zhou Cui, Ge Changsheng's wife, and Ye Xiu, Zhao Jianguo's wife, have become close sisters. However, after joining the army, Ge Changsheng and Zhao Jianguo soon arrived at the front line of the anti-USę“Vietnam. In a battle, the smart Jianguo was wounded while saving Changsheng and lost a lot of blood. At the end of his life, he entrusted his wife Ye Xiu to Ge Changsheng, who was older than him. Then, the enemies rushed up, and everything was over.