Tang returns to a small island formed by the accumulation of floating sand from the Yangtze River, where he runs an organic farm. All these years of work, however, have caused him to deal with difficulties and failures frequently. A mother, who lives in seclusion in the mountains, comes out of isolation to spend a few days with her daughter, Xiao Yu, who works on the same farm. She hopes that the young girl will accompany her back to her old home for the winter solstice. Under her mother's watchful eye, Xiao Yu becomes aware of traumatic issues in his life - and can no longer ignore them. Meanwhile, the farm undergoes a radical change in its operating methods. A storm is approaching that will transform them all.