Joe and Harry Phelps are trapped by a blizzard in a valley in the Utah Rockies and with the guide who reaches them, they settle down for the winter. Fires without matches, snares, traps, all in the day's expectations. But when a vicious band of Indian and white criminals begin to complicate their lives things move fast and furiously through a frozen-north climax to a tobaggan finish. Thrills and chills. And woodlore too.