One day in 1999 after his two-year-old son Lei Da goes missing, Anhui farmer Lei Ze Kuan begins a long journey searching for his lost son. Along the way he encounters a young man (Zheng Shuai) who had himself been abducted as a small child and they form a special bond as they help each other search for their lost loved ones. Lei eventually broadcasts Zheng Shuai’s story on Weibo, and as a result, Zheng is reunited with his birth parents. Lei continues his journey searching for his son. ~~ Inspired by true story.