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No one has ever walked without any assistance across Antarctica to the South Pole and back until now. In a special documentary, Nat Geo Channel follows two Australian explorers, Justin Jones and James Castrission in their risky trip to hell and back, only to find out this is a race. A Norwegian skier is already ahead of them tackling the same goal. The team battles serious injuries and hypothermia in a nail-biting journey from which no man has ever come out alive before.