It tells the touching story of a 14-year-old boy Shen Lusheng and his nine-year-old sister Cui Er who fled westward and experienced war, life and death, separation and reunion. They lost their homes in the Yellow River Flood Zone, struggled to survive in Xi'an, were separated and reunited during the war, and finally took root and grew up in New China. The work uses the "long river" to refer to the torrent of the times, and the "sunset" to symbolize the curtain call of a generation, profoundly revealing the tenacity, kindness and responsibility of ordinary people in the great era.
