A horrifying tornado rips through Missouri, wiping out 200 houses a minute. Elsewhere, one man's underwater debacle results in a remarkable rescue. Facing an explosive tornado, a delivery driver is forced to take shelter in a drinks machine.
Eyewitness footage captures the moment a tornado tears through the town of Moore, Oklahoma, destroying two schools with the pupils still inside.
A hurricane at sea plunges 4 000 cruise passengers into panic. Beset by a powerful storm, a herd of pregnant cows is driven into the Irish Sea.
In St. Albans 53 houses were cut off from the outside world and a horse in Somerset found himself sinking deeper into a hole.
An international team of volcanologists draw parallels between the volcanoes on Earth and those on other planets, and reveal how they are not just a destructive force but essential to the formation of atmospheres and even life itself.
The Marsh Pride of Kenya's Masai Mara is in a unique situation in their history. They have been abandoned by all of the adult males, and just two adult females are left to feed and protect their eight youngsters. The future of the whole family rests entirely on the shoulders of these two mothers, Charm and her cousin Sienna. They need to raise their cubs to adulthood if this great dynasty is to continue, and they all face the great perils of the African savannah.
Den populära vetenskapsjournalisten Michael Mosley avslöjar fysiken, kemin och biologin som gömmer sig i vår älskade mat. Vad händer i kroppen när vi äter riktigt stark mat och vad är det exakt som utlöser det?
Every year on average, nine animals are slaughtered for each person on Earth. Michael Mosley examines the impact that this is having on the planet.
In the Arctic, maintaining a subsistence lifestyle requires Alaskans to constantly learn new techniques, and honour those who came and lived before. In Kavik, Sue Aikens makes a cost-effective hunting weapon using harvested materials.
Sue returns to Kavik after her injury. Glenn goes on a hunt. Jessie preps his fish wheel for summer. The Hailstones set up camp in a new location.
In the desolate Arctic of Alaska, the only thing you can depend on is change. And with summer quickly arriving, change is sure to come.
Glenn prepares for his fall sheep hunt by scouting for the animals and building a camp. Meanwhile, Sue struggles to get her camp up and running and has no choice but to call in for reinforcements.
Sue gets sidelined by technical issues; the Hailstones buckle down in the face of mother nature; Jessie and Glen find food and resources.
Preparations for the brutal Alaskan winter dominate life for the hardy characters as this awe-inspiring series returns with an icy vengeance.
A colony of emperor penguins gather in Atka Bay, on the coast of Antarctica, after three months feeding at sea. They arrive as the sea freezes over and all the other Antarctic animals have left the continent for the relative safety of the sea. The penguins have come here to raise the next generation in their emperor's dynasty, but to do so they will have to work together to keep themselves and their chicks alive through the coming winter: the coldest and cruellest on earth.
Robson ventures out on the wild waters of British Columbia, Canada, in search of caviar-rich sturgeon and prize salmon. He also meets a group of intrepid commercial fishermen and enters a fishing competition with a difference.