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.

Every year, thousands of Antarctica's emperor penguins make an astonishing journey to breed their yo...

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

How do we live, knowing we are going to die? In search of answers, we probed the minds of atheists, ...

A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time...

The Tasmanian Tiger twists and turns depending on how it's seen. Sheep-killing beast or tragic victi...

Crazy cat lady or world-class musician? You decide. Dorian Rence smashes our notions of what matters...

The majestic Alaskan brown bear is the largest predator in southeastern Alaska, but everywhere, its ...

An epic story of adventure, starring some of the most magnificent and courageous creatures alive, aw...

An astonishing journey revealing the awesome power of the natural world. Over the course of one sing...

Takes us to locations all around the US and shows us the heavy toll that modern technology is having...

Although first glance reveals little more than stones and sand, the desert is alive. Witness moving ...

William Shatner sits down with scientists, innovators and celebrities to discuss how the optimism of...

Herzog and cinematographer Peter Zeitlinger go to Antarctica to meet people who live and work there,...

It's the night before Hogswatch, usually a time of joy on Discworld, but there are suspicious going-...

Scientists have discovered and investigate the reason behind the behavior of sharks swimming around ...

Eerie images of landscapes after the Fukushima nuclear disaster shot on black and white 8mm.

'Alaska Far Away' tells the story of the Matanuska Colonization Project of 1935, a creative and cont...