The Brenva Glacier at Mont Blanc has always been a legend among mountaineers. When the talented John Lattery sets out one day to cross this sea of ice, no one thinks that it will be his last expedition. But, when Lattery fails to return, his long time friend, Captain Chayne, is sent to search for the missing explorer. As his party engages in a heroic search and rescue mission, Chayne makes a sickening discovery.