As conditions worsen during the grueling arctic winter, Alaskans risk their lives to prepare for months of total darkness. Andy Bassich braves unsafe conditions on the Yukon River to hunt for needed meat. Sue Aikens tests a new piece of equipment that could be the difference between life and death. The Hailstones set a trap line near their homestead for vital fur. And Jessie Holmes must avoid thin ice to harvest the lifeblood of the Arctic.