Buffalo Air

If no one will do it, Buffalo will do it! Renegade Arctic airline Buffalo Airways defies the cold and the competition by flying WWII-era propeller planes on missions all over the Canadian North. Landing precious cargo onto remote airstrips at mine sites, water bombing forest fires and carving out runways on frozen lakes and rocky tundra, the Buffalo boys do it all, despite blizzards, breakdowns and crazy passengers.
(Source: http://www.omnifilm.com/factual_series.shtml#buffalo)