The first half is a salute to John Wesley Powell, the first man to explore the Colorado River. Walt Disney presents a behind-the-scenes look at the filming of Ten Who Dared on the same waters. Then the True-Life Adventure Featurette: Bear Country is shown.

Carefully picked scenes of nature and civilization are viewed at high speed using time-lapse cinematography in an effort to demonstrate the history of various regions.

People go and search for the legendary Bigfoot creature.

Follows Martin Strel as he attempts to cover 3,375 miles of the Amazon River in what is being billed as the world's longest swim.

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"Africa Light" - as white local citizens call Namibia. The name suggests romance, the beauty of nature and promises a life without any problems in a country where the difference between rich and poor could hardly be greater. Namibia does not give that impression of it. If you look at its surface it seems like Africa in its most innocent and civilized form. It is a country that is so inviting to dream by its spectacular landscape, stunning scenery and fascinating wildlife. It has a very strong tourism structure and the government gets a lot of money with its magical attraction. But despite its grandiose splendor it is an endless gray zone as well. It oscillates between tradition and modernity, between the cattle in the country and the slums in the city. It shuttles from colonial times, land property reform to minimum wage for everyone. It fluctuates between socialism and cold calculated market economy.

A journey into four classical elements through the four main characters of the film. The main characters in the movie represent each of their own elements.

Follow the Manhattan-based Beavan family as they abandon their high consumption 5th Avenue lifestyle and try to live a year while making no net environmental impact.

Cheetah and Leopard... no animal can match the intensity of their power and grace. On the horizon, the next victim draws near, crouched in the grass, senses honed, an explosive rush, claws extend and then the final clamp of fangs in a jugular embrace. Discover what separates these predators from all others. The cheetah, the ultimate tactician, single minded in its abandon for the lightning-fast gazelle. And the leopard, an invincible opportunist lying in wait for the unwary. Both driven by pure instinct and the constant pressure to kill.

This video examines the killer whale, one of nature's greatest predators. It is part of a multi-volume Time Warner series that markets the ferocious, killing aspects of various wild animals.