Deep Blue

Riding Giants is story about big wave surfers who have become heroes and legends in their sport. Directed by the skateboard guru Stacy Peralta.

An examination of the extinction threat faced by frogs, which have hopped on Earth for some 250 million years and are a crucial cog in the ecosystem. Scientists believe they've pinpointed a cause for the loss of many of the amphibians: the chytrid fungus, which flourishes in high altitudes. Unfortunately, they don't know how to combat it. Included: an isolated forest in Panama that has yet to be touched by the fungus, thus enabling frogs to live and thrive as they have for eons.

A documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide.

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their young. They walk, marching day and night in single file 70 miles into the darkest, driest and coldest continent on Earth. This amazing, true-life tale is touched with humour and alive with thrills. Breathtaking photography captures the transcendent beauty and staggering drama of devoted parent penguins who, in the fierce polar winter, take turns guarding their egg and trekking to the ocean in search of food. Predators hunt them, storms lash them. But the safety of their adorable chicks makes it all worthwhile. So follow the leader... to adventure!!

Jeremy Clarkson tells the dramatic story of the Arctic convoys of the Second World War, from Russia to the freezing Arctic Ocean.

On December 4, 1872, the unmanned Mary Celeste was found adrift in the Atlantic with its cargo fully intact. The mystery of this "ghost ship" remained unanswered for over 135 years. What happened to the Mary Celeste is widely regarded as the most famous mystery of the sea. Watch it unfold to its stunning conclusion, at last.

Trek into the hidden battlefields of northern Botswana where lions and spotted hyenas clash in overlapping territories. With never-before-seen footage, much of it filmed at night, you'll uncover an intense and vicious blood feud that has been waged for millennia. Follow the Southern Clan, led by a powerful hyena matriarch whose firstborn female cub kills her sister at birth to assure her succession as leader of the clan. Lurk in the shadows as a lioness from the Central Pride gives birth to three cubs and then encounters a deadly Egyptian cobra. You'll be stunned by breathtaking chase scenes as the hyena matriarch is brutally killed by a male lion, throwing the clan into chaos. Discover nature's savage conflicts in this ancient rivalry.

Flyways follows endangered migratory shorebirds as they travel their ancient migration routes around the planet. Using nanotechnology and global tracking from the International Space Station, the project will uncover the paths of the world’s greatest, feathered endurance athletes and shine a light on the scientists and international lawyers who are collaborating to save them.

Genuine connections between children and nature can revolutionize our future. But is this discovery still possible in the world's major urban centers? The new chapter of "The Beginning of Life" reveals the transformative power of this concept.

National Geographic filmmakers, Dereck and Beverly Joubert, explore how some animals are thrust together by the forces of nature-sometimes through a millennium of evolution or even last year’s drought. In the aftermath of strange elephant deaths, they piece together a visually stunning story that confirms their theory that lions were hunting elephants. Narrated by Jeremy Irons.