Wrangel Island is an isolated sanctuary lying off Arctic Russia containing 7,500 square kilometers of harsh tundra and soaring mountains. In 1976 it was declared a federal nature reserve. Its human inhabitants comprise a handful of rangers plus, in summer, a dozen or so researchers. Along with three other iconic species - snowy owls, polar bears and snow geese - Arctic foxes thrive on the island. These canids are dependent on lemming populations and the seasonal migration of Snow Geese which brings nourishment in the form of stolen eggs, goslings and very rarely an adult goose. Sergey Gorshkov follows the foxes through various seasons on the tundra; hunting, raising their kits and surviving in this remote outpost.