The iconic Ghan needs some bogies changed fast, a routine wheel lathe job hits a snag, plus an 80 year old steam loco climbs a mountain for a special anniversary. PG Take a trip to Yellowknife, Canada to experience one of the most dangerous careers around. Watch in awe as truck drivers haul equipment and supplies to miners in the Canadian tundra in the dead of winter on a 350-mile highway of ice. Reality Documentary Reality Group Documentaries PG