
Truckers with nerves of steel take their lives in their hands driving heavily loaded vehicles across frozen lakes to deliver supplies to remote locations in Canada and Alaska. Whether they're bringing supplies to Canadian diamond mines, supplying offshore oil rigs in Alaska or even charting new territory driving over frozen swamps and rivers to bring much-needed supplies to small towns, these extreme truckers face troubles from their machines and from Mother Nature.

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Determined not to lose any more time or money, Jack Jesse and Lisa Kelly set out from Fairbanks before plows can clear a freshly fallen foot of snow; the blizzard causes a major collision on an icy hill; two Canadians' first solos.
Lisa tries out for the Heavy Haul division by hauling 80-foot sections of wide-gauge pipe on a 600-mile run; a 500-mile race between Hugh and Alex; Tim's truck breaks down.
Tim and George run into a storm 25 miles from Deadhorse; Lisa is forced to stop in Coldfoot because of the storm; Hugh and his convoy partner have a barbecue in the snow at the top of Atigun Pass.
A deadly combination of unpredictable weather makes the Atigun Pass more dangerous than ever with slippery conditions and a risk of avalanches; Jack Jesse calls on friend Carey Hall to help haul a pair of 46,000-pound tanks worth $300,000.