A warm-up has swept through the Arctic, leaving the camps scrambling to prepare for what lies ahead. In Eagle, newcomer Cody Allen hopes to learn the intricacies of dog mushing & the lessons have only just begun. In Kavik, the warm weather has Sue on high alert. Her fears that the warm weather is bringing predators closer to her camp are realized when she scouts Kavik from a plane & spots a group of polar bears not far from her land. For Chip & Agnes Hailstone, the warm-up has delayed the thickening of the Kobuk River ice, making fishing impossible. Until the ice is thick enough to bear the weight of their large net, they will be without their fish & their winter trade currency.