National Geographic - Arctic Kingdom: Life at the Edge
Plot: Stalk the Arctic ice with the fiercest predator, the polar bear, as it prowls one of the most forbidding places on the planet: a hidden kingdom of magnificent creatures. Armed with a keen sense of smell and backed up by 1,700 pounds, fur and fangs, the polar bear stands alone at the top of the food chain
James Coburn
Janet Hess