Italy, near Cassino, in the terrible winter of 1944. An icy rain, continuing unabated for days. Guided by a seventy-year-old Italian man in rope-soled shoes, three American soldiers are sent on a reconnaissance mission up the side of a steep hill that they discover, before very long, to be a mountain. As they climb, the old man's indeterminate loyalties only add to the terror and confusion that engulf them.