A documentary history of the exciting, sometimes ill-fated exploration of Canada's Arctic, produced jointly by the British Broadcasting Corporation and the National Film Board of Canada. The film shows the challenge and the rewards of the far north and, from rare film footage, some of the exploits of the first and last men to run the gauntlet of the cold: Byrd's flight; Stefansson's sled journey; Captain Bernier's explorations; and finally, the voyage of the U.S.S. Manhattan.