As winter closes in, the participants are threatened by predators looking to steal their precious food stores. As the survivalists rethink their strategies, one makes a stand by confronting the Arctic's most ferocious creature.

As the weather gets colder and even less forgiving, the participants struggle to obtain basic resources. One participant continues to lose weight at a rapid and deadly pace, while another continues to be harassed by ruthless predators. Another contestant wakes one morning to a grave discovery and realizes that the Arctic winter has only just begun.