Uses the Mount St. Helens and the Santorini volcanoes and the San Francisco earthquake as dramatic evidence that our planet's subterranean regions are active and continually changing. Explains the plate tectonics theory and accompanies scientists around the world as they study the boundaries between plates of the earth's crust where earthquakes and volcanoes may occur in the future.
Meet the talented professional cinematographers who go behind the camera every day and sometimes risk their lives to bring us the extraordinary images of nature's most amazing creatures.
Showcases the rare beauty and rich variety of plant and animal life found in a Costa Rican rainforest. Also examines the impact of man's exploitation of the rainforest on this fragile ecosystem.
