While the eyes of the world are focused upon attempts to scale Mount Everest, two young men - once members of the world's climbing elite, subsequently forced into premature retirement after the failure of a secret military operation in the Alps during World War II - have become outcasts of mountaineering society. Until, that is, a peculiar and dangerous request is made of them, drawing them back to the mountains on an exploit that will prove treacherous in more ways than one, as they confront not only the pitiless cruelty of nature but also the ghosts of their former selves.