When it's winter in Alaska, Mother Nature rules, and the work necessary for survival is grueling. In Noorvik, Chip and Agnes Hailstone break trail to the Kiwalik River in preparation for hunting and fishing. In Kavik, Sue Aikens constructs a pair of snowshoes so she can travel through deep snow and scout the tundra. In Eagle, Andy Bassich fights frigid temperatures to replenish crucial resources. And in Wiseman, Erik and Martha Salitan set their first fur traps of the season.