Geologist Martin Pepper and Biologist Liz Bonnin investigate world history in a unique way: By exploring different parts of the world known for historic events andcataclysmic disasters| as well as parts of the world that have ties to the creation of the Earth from a scientific point of view. From the Ice Age| to the Meteorthat struck the Earth 65 million years ago| to Krakatoa--watch as Martin and Liz learn How the Earth works!