The team explores the threat of landslides in the UK. Leah travels to the Isle of Wight to discover why it's under the constant threat of eroding rocks. Dougal explores the biggest sinkhole in Britain.
The team travel to avalanche country and the French ski town of Tignes in the Alps. Clare and Dougal go skiing in the shadow of the biggest avalanche threat in the mountains and test out the latest survival technology.
Mike, Dougal and Leah are on an epic, rain-soaked journey. The team travel the length of India tracking the monsoon - the world's biggest weather phenomenon, as it passes over the country to the world's wettest place.
Clare, Dougal, Leo and Mike discover the secrets of ice. On a bobsleigh track in the Swiss Alps, Leo learns about the slippery properties of this frozen substance, while Mike explores the devastating power of ice storms.
The team travel 9656km to the country of Chile and the Atacama Desert, officially the driest place in the world. Leo skydives out of a plane to reveal why the air is so dry.
It's wetsuits on for the team as they hit the surf to unlock the secrets of king-sized waves and fast-rising tides.
Mike Theiss travels into the heart of the Boston Blizzard of February 2013. He witnesses first-hand how a major city in the US comes grinding to a halt after 36 hours of winter chaos.
The team travel to Morocco, North Africa and to the Sahara Desert: the biggest hot desert in the world. Leo is put to the test as he finds out how to escape the deadly grip of quicksand.
The team investigates what happens when water becomes our enemy. Mike heads to Southampton to learn all about the most important flood rescue vehicle - the hovercraft.
This program takes viewers on a journey to one of the world's coldest and most hostile places on the planet - the Yukon territory in Canada.
Tornadoes are rare, but there's nothing more frantic or explosive in nature. The team investigates where that awesome power comes from and what happens when it's unleashed.
The team take on one of the most feared forces on the planet - the volcano. Dougal explores the secret lava tubes of Etna, and climbs Stromboli for a face-to-face encounter with an erupting volcano.
At any one time it is estimated that 2000 thunderstorms are happening across the world. The team investigate what makes the thundercloud so feared, and Leo faces some giant hailstones.
The team explore the phenomenon of the earthquake. Clare and Mike train with one of the top international rescue teams. Leo takes on a dangerous cliff climb with a very special partner.
The Fierce Earth team investigate the terrifying giant waves of the tsunami. Zoe and Dougal travel to Japan to meet child survivors of the 2011 disaster and test ride the brand new tsunami escape pod.
Hurricanes, earthquakes, tsunamis, lightning strikes: this program shows what it would be like to experience some of nature's most destructive forces.
The team investigates wildfires. We travel to Colorado and meet one of the youngest female firefighters in the US, who has tackled wildfires head-on after her house and part of her neighbourhood was burnt down.
The team encounter the most feared event in weather: the hurricane. Storm chaser Mike takes us on a wild ride into the eye of the storm, and Zoe learns how we're designing buildings to cope with their awesome force.
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