Nature: Arctic Wolf Pack

At the very northern edge of North America is Ellesmere Island, where the unforgiving Arctic winds tear through the tundra, dipping temperatures to 40 below zero. Discover the White Wolf, one of the most hardened predators on the planet in the Ellesmere's unforgiving ice and snow. In a fight for survival, these roaming hunters must travel far from the den to feed their cubs putting them at risk.