上世紀五十年代末，姐姐杜思珩被無奈的母親遺棄於上海孤兒院，隨後又被轉送至內蒙撫養長大。六十年後弟弟杜思瀚為了尋找姐姐杜思珩的蹤跡，在內蒙草原上開始了一段充滿曲折和反轉的尋親之旅...在當事人的回憶裡，被送到內蒙古的姐姐杜思珩一開始並不適應內蒙的生活，但在淳樸善良的草原人民的精心撫養和感召下，年幼的杜思珩逐漸融入進了新的家庭。六十年的歲月滄海桑田，姐弟二人終於再次相見，彼此的內心也同樣得到了釋懷，他們懷念著自己的父輩們為腳下的土地而奮鬥的歲月，也激勵著自己為這片土地的繁榮努力奮鬥！

In the late 1950s, Du Siheng was sent to Shanghai Orphanage by her mother, who couldn’t support two kids. Later, she was transferred to Inner Mongolia and adopted by a loving family. Sixty years later, Du Sihan set out for Inner Mongolia and embarked on a journey to find his elder sister. The journey, however, turned out to be full of twists and turns...... Du Siheng couldn’t adapt to the life on the grassland when she first arrived in Inner Mongolia. Touched by the love and warmth from the Mongolia people, the young Du Siheng gradually integrated into her new family. After six decades, the sister and brother reunited again and finally let go of the past. They reminisced the days when their fathers fought for the land beneath their feet and drew motivation from the older generation to work hard for a more promising and prosperous future.