Lewis Book, a doctor with a history of embroiling himself in conflicts, and his daughter, Sophie, travel to Nepal to join a climbing expedition. One evening, as Sophie sits on the border between China and Nepal, watching the sun set over the Himalayas, she spots a group of Tibetan refugees fleeing from Chinese soldiers. When shooting starts, Dr. Book rushes toward the ensuing melee, ignoring the objections of Lawson, the expedition leader, who doesn’t want to get involved and spoil his chance to be the first climber to summit Kyatruk. Lawson is further enraged when Amaris, a Chinese-Canadian filmmaker recording the expedition, joins Book with her camcorder in hand. When the surviving Tibetans are captured just short of the border, Lawson and Sophie look on helplessly as Book and Amaris are taken away with them, down the glacier into China. From that point, Lawson continues his ascent, and the fugitives are caught in an explosive and thrilling pursuit that will test their convictions, courage, and endurance.