In the cold winter, a group of Shenzhen tourists drove to Changbai Mountain in Northeast China. It was supposed to be a happy trip, but due to the negligence of the father Ade, his 8-year-old son was unfortunately lost. Ade and his wife sought assistance from the local relevant departments, and the search and rescue operation was immediately launched. The golden rescue time of 24 hours passed, and the conventional safety limit of 48 hours also passed, but the child was still not found. Even though there was little hope, the search and rescue police and the snow-covered search and rescue team still did not give up... Will a miracle of life happen?