影片分为《旗帜》《看见》《寻找》三个单元叙事,讲述志愿垦荒、西部支教、公益助学三个不同年代的热血青春故事,展现每一代青年都有自己际遇和机缘,彰显中国青年时刻与祖国同呼吸共命运的时代精神。Three struggling stories of Chinese youth. It spans the Beidahuang development period, the western development period and the \"new era of socialism with Chinese characteristics\".