In the Arctic, frigid temperatures, heavy snowfall, and unclear trails turn simple tasks into dangerous endeavors. The Hailstones are forced into action when one of their own suffers a critical injury on the ice. Jessie Holmes braves icy conditions to procure key resources. Sue Aikens labors to improve her hygiene and comfort in Chena. And Ricko DeWilde takes his children into the backcountry for survival lessons in the dead of winter.