Wild America — S2E4: The Man Who Loved Bears Part 2

Over the summer, the adventurous cub encounters many other creatures, among them a hungry Cougar. As winter approaches, Marty digs a den for Griz, and while she sleeps, he goes off to observe wildlife which does not hibernate. In April, Griz emerges from her den, and must learn one last lesson -- to fear humans, even Marty. This separates man and bear forever.