Liz and Martin go to Japan to see just how much of a threat volcanoes, earthquakes, and tsunamis pose.

Martin Pepper and Liz Bonnin journey from the glaciers of Canada to the heat of Death Valley looking for evidence of Ice Ages in North America.

Biologist Liz and geologist Martin examine the link between the Rocky Mountains and the uranium found in the Atomic bomb.

Liz Bonnin and Martin Pepper investigate Mount Vesuvius near Naples, Italy and a nearby massive supervolcano, Campi Flegrei.

Liz and Martin travel to Hawaii to study evidence of catastrophic events and the destruction of its geological past.

Martin and Liz survey volcanoes in Iceland to see if they could spread global chaos; Martin tries out an insane motorsport on ashy slopes.

Martin and Liz explore a massive asteroid impact 65 million years ago that wiped out the dinosaurs. Later, Martin experiences the power of a NASA supergun.

Krakatoa, a deadly volcano in the heart of Asia, has the possibility of erupting and the power to plunge the world into a cruel dark age.