The film is a touching epic drama based on a true story. In the 1960s, about 3,000 Chinese orphans were sent to Inner Mongolia. In the Xilingol grassland, Qiqigema Erji adopted Chen Chen and Yu Sheng even though her husband disapproved. The children grew up as Mongolian nomads. But 20 years later, upon hearing the news that biological parents were looking for their children, Chen Chen left for Shanghai in the hope of meeting his parents. Yu Sheng finally did meet his parents and faced a choice as to where he wanted to live. Through the film, director Ning Cai depicts maternal love as symbolized by the vast grassland. Although there is no blood relation, Qiqigema’s love for her two adopted children is unconditional and selfless. “The mother of grassland” is the typical image of motherhood for Mongolians, and the director portrays maternal love with the Xilingol grassland as the background. The symbolic tree that stands alone on the vast grassland will leave a lasting impression in the minds of the audience.