Twenty years ago, a young American hiker named Chris McCandless, the accomplished son of successful middle class parents, was found dead in an abandoned bus in the Alaskan wilderness and became the subject of the best-selling book and movie “Into the Wild.” Now, PBS retraces Chris McCandless’ steps to try to piece together why he severed all ties with his past, burnt or gave away all his money, changed his name and headed into the Denali Wilderness. McCandless' own letters, released for the first time, as well as new and surprising interviews, probe the mystery that still lies at the heart of a story that has become part of the American literary canon and compels so many to this day.

Bear Island (2007)
The majestic Alaskan brown bear is the largest predator in southeastern Alaska, but everywhere, its ancient haunts are under siege. As the modern world closes in, the great bear’s world is shrinking and encounters between humans and bears are on the rise. Join researcher LaVern Beier as he uses cutting edge technology to protect this extraordinary species. To observe them on their turf, without risking life and limb, LaVern attempts to deploy National Geographic’s CRITTERCAM. Until now, CRITTERCAM has been used almost exclusively on marine animals. Vern and his colleagues are on the cusp of a revolution in terrestrial field science…the opportunity to vicariously walk with bears into the deepest corners of their habitats, where even great hunters barely dare venture.

Call Of The Wild (1993)
A young boy heads off to the Yukon after hearing tales about the Gold Rush, and he forms an unwavering friendship with a heroic Alsatian dog called Buck.

Five Seasons: The Gardens of Piet Oudolf (2017)
Viewers are immersed in revolutionary landscape designer Piet Oudolf’s work and given an insight to his creative process, from his beautifully abstract sketches, to theories on beauty, to the ecological implications of his ideas.

Attenborough and the Giant Dinosaur (2016)
David Attenborough tells the story of the discovery and reconstruction in Argentina of the world's largest-known dinosaur, a brand new species of titanosaur.

The Story of Yosemite National Park (1991)
Mountain men Joseph R Walker was probably the first non-Indian to see Yosemite, in 1833, but not until the California militia entered the valley rounding up the Ahwahneechee Indians was the region discovered. In June, 1864, President Abraham Lincoln signed the Yosemite Grant, making it a California State Park. It became famous through the writings of Horace Greeley and the efforts of John Muir. Cinematographer Dennis Burkhart captures in this video the magnificence of Yosemite Valley (El Capitan, Bridalveil Fall, Half Dome), the High Sierra (John Muir Trail, Tuolumne Meadows, Tioga Pass) and the Mariposa Grove of giant sequoias. The camera catches the wildlife that roams the 1,1170 square miles of Yosemite, i.e. the mule deer, mountain lion, black bear, coyotes, bighorn sheep, and the rare peregrine falcon. This video reveals why 3.8 million visitors come each year and stand before awe-inspiring panoramas they will never forget.

I Remember When I Die (2015)
Death, the passage of time and eternity. Big topics, but seen from a new and original perspective in a film based on a simple idea: that one's sense of time ceases to function when one dies, and that one for a short – or in fact very long – moment has the chance to experience eternity. And to therefore live in a single memory forever. Which one would you choose? 'I Remember When I Die' takes place at life's last destination, a hospice, but is a poetic and vital journey into the borderland of consciousness, and right into a possible afterlife.

Koyaanisqatsi (1983)
Takes us to locations all around the US and shows us the heavy toll that modern technology is having on humans and the earth. The visual tone poem contains neither dialogue nor a vocalized narration: its tone is set by the juxtaposition of images and the exceptional music by Philip Glass.

Breaking Boundaries: The Science of Our Planet (2021)
David Attenborough and scientist Johan Rockström examine Earth's biodiversity collapse and how this crisis can still be averted.
Namibia’s Desert Kingdom (2013)
Rocks, dunes, sand and dust - large areas of Namibia in southwest Africa are characterized by deserts. Riverbeds full of sand meander through these inhospitable regions. Some of these only have water once every few years when enough rain has fallen in the mountains and the water rushes to the coast - but most of the time the river courses have dried up. And yet they are crucial for the survival of many living beings.

African Safari (2013)
A documentary that leads the audience from Namibia to Kilimanjaro to explore the African wildlife.

Deep Blue (2003)
Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

Earth (2007)
An epic story of adventure, starring some of the most magnificent and courageous creatures alive, awaits you in EARTH. Disneynature brings you a remarkable story of three animal families on a journey across our planet – polar bears, elephants and humpback whales.

Guadalquivir (2013)
'Guadalquivir' is a feature length documentary directed by Joaquín Gutiérrez that features a fox, an animal that has adapted, living in packs and alone and that is a carnivore, vegetarian and even carrion. The camera follows the path of the fox by the Sierras de Cazorla, Segura and Las Villas.

Half Moon (2020)
A dance between moon and ocean, forests and rivers. A short film by Scott Barley, originally made for a "half moon phase" sequence for Tadhg O'Sullivan's essay film, 'To the Moon' (2020). Shot on iPhone Xs with various rephotographing techniques, combined with superimposed drawings and paintings by Scott Barley. Released as a standalone short film in 2024 as part of 'Short Films (2012–2020): Solo Works by Scott Barley' on Blu-ray.

A Year in a Field (2023)
With his camera and tripod, BAFTA-winning documentary filmmaker Christopher Morris began filming each day in a field near his home, telling the story of one Cornish field told over one climatic year.