The film is based on a real-life incident on May 14, 2018, when Sichuan Airlines flight 3U8633 was flying from Chongqing to Lhasa, the right front windshield of the cockpit shattered, causing injuries to the first officer and forcing the crew to have to make an emergency descent. Facing the dire situation, captain Liu Changjian and his crew calmly dealt with this situation. They overcame the harsh conditions, including low pressure at high altitude and low temperature. Thanks to the close cooperation and collaboration of multiple departments, the flight successfully made an emergency landing at Chengdu Shuangliu Airport, ensuring the lives of the 119 passengers and 9 crew members on board.