Beyond the Tree Line

After spending two decades in England, Bill Bryson returns to the U.S., where he decides the best way to connect with his homeland is to hike the Appalachian Trail with one of his oldest friends.

Uprooted from their comfortable home in Pennsylvania, James and Kate Tanner, along with their sons, Virgil and Andy, journey to the wild country of 1890s Wyoming to become farmers. Soon, they come face-to-face with tornadoes, bears and wolves. But through the hardships their love for each other endures, even when a local rancher sees the newcomers as "squatters" on his land, and will stop at nothing – including murder – to drive them out.

Africa the Serengeti takes you on an extraordinary journey to view a spectacle few humans have ever witnessed: The Great Migration. Journey with more than two million wildebeests, zebras and antelopes as in their annual 500 mile trek across the Serengeti plains.

When his beloved dog goes missing, a young man embarks on an incredible search with his parents to find him and give him life-saving medication.

Set in 1845, this drama follows a group of settlers as they embark on a punishing journey along the Oregon Trail. When their guide leads them astray, the expedition is forced to contend with the unforgiving conditions of the high plain desert.

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!!

Four would-be siblings on an outdoor vacation are encouraged to bond by their parents. The four adventurers journey out of bounds into the wild on their ATV's in search of a family relic. They soon find themselves lost in the woods and ill equipped to deal with not only the rugged terrain but each other. This is a story of hope and overcoming, full of humor and fun. Its a coming of age tale not only for kids but for parents as well.

Take the 2,173 mile journey along the most famous long-distance hiking trail in the world. Along the way you'll meet hikers who have embarked on the trek, carrying everything they need on their backs. Hear their stories and experience the thrills and pain of this epic journey.

For Muslims everywhere, the ultimate goal is to make the Hajj at least once during their lifetime. This spiritual journey is the basic premise of an entire religion and sees impoverished African Muslims mixing with their incredibly wealthy Western counterparts. This documentary follows some of the 20,000 Britons who make the journey to Mecca, unravelling the mysterious aura that surrounds this remarkable event. Combining the wondrous backdrop of Mecca with intriguing interviews that provide a previously undocumented view of Islam, Hajj will enchant both Muslims and non-Muslims alike.

Backpacking alone on the Appalachian trail, a married woman meets a younger hiker and the two strangers become inexplicably drawn to one another.

Charles Starrett goes up against an entire family of criminals posing as respectable citizens in this entry in Columbia's long-running Durango Kid Western series.

A group of hikers lost on the Appalachian Trail stumble across an ancient secret that threatens their survival.

John, Julian and Paul enter the Kaibab National Forest for a three-week survival trip and peyote vision quest. The only items they take with them are a knife, a bottle of water and a garbage bag each. A week into their journey a disastrous turn of events changes everything and the men are forced to ultimately confront the darkest corners of their morality and mortality. Battling the elements and each other, the quest becomes to make it out of the forest alive.

Transcending cultural barriers and consistently going against the grain, female Nepali climber Pasang Lhamu Sherpa attempted to summit Everest four times in the early nineties. Although she was not allowed to attend school as a child, Pasang did not let that stop her from pursuing her dreams. After founding her own trekking company in Kathmandu, she blazed a trail for Nepali women via her efforts to summit Everest. Proving how big you can dream and how far you can go to achieve those dreams, she left a legacy not only for the family she has left behind, but for the myriad women following in her footsteps.

When an unidentified hiker is found deceased in the Florida wilderness, authorities release a sketch. Multiple hikers call in claiming to have met the man. There's only one problem – he never told them his name. It would take two years, thousands of devoted internet sleuths, and a miracle of science to identify him, and that's when the trouble really starts.

Survival expert Ray Mears takes an epic adventure into Canada’s unforgiving yet stunning wilderness, covering over 1,000 miles

Ed Stafford and Luke Collyer set out to walk the entire length of the Amazon River. Over seven thousand kilometres of the toughest terrain on the planet. Teeming with deadly wildlife and a battleground for the criminal drugs trade.

Right now you're hurtling around the sun at 64,000 miles an hour (100,000 kms an hour). In the next year you'll travel 584 million miles, to end up back where you started. Presenters Kate Humble and Dr Helen Czerski follow the Earth's voyage around the sun for one complete orbit, to witness the astonishing consequences this journey has for us all.

The four-part series takes an awe-inspiring look at the world around us, shot with ultra-high-definition cameras that capture sweeping panoramas and extraordinary close-ups of Canada’s majestic terrain and diverse species.

Join Adventurer Charley Boorman as he sets off once more on an epic motorbike adventure, this time making his way through the stunning, rugged and often unknown South Africa. Teaming up once again with producer/director Russ Malkin, they journey in a circular route starting and finishing in Cape Town, taking on all corners of this wild and varied African country, experiencing the deeply rooted cultures, the extraordinary people, the remarkable wildlife and the heart stopping adventures along the way.

What does it take to build a house totally off the grid in some of the most unforgiving terrain on the planet? We follow a cast of characters who set out to construct three incredible cabins in the obscure Alaskan wilderness. With no roads and no building supply centers, they’ll have to get creative in a new season of Building Alaska.

Salvage cars in Berlin are fixed up specifically for a cross continent run though Africa. They face breakdowns, extreme terrain and even robbery.

In 1980, the U.S. government banned new human occupation in the Arctic National Wildlife Refuge in Alaska, a protected area, home to thousands of native animals and pristine terrain spanning roughly the size of South Carolina. Currently, only a handful of families spread across seven permitted cabins are allowed to remain in the refuge. Within less than 100 years, all remaining permits will reach expiration, and there will be no human presence left.

VICE correspondent Krishna Andavolu chronicles the science, culture, and economics of the emerging “green” economy. Each episode explores the impact of marijuana legalization across the United States and internationally, examining how people on all sides of this issue are reacting to the growing popularity and acceptance of this remarkable plant.

Hazen Audel embarks on an epic trek that will mirror a traditional Berber nomad journey across the Saharan desert cauldron to an oasis.

Take a journey to Antarctica to experience the world’s most extreme wilderness, to see the massive undertaking it is to support human life there, and to chronicle the world-changing science being done. Embed with missions on the ice, underneath it, and atop some of its peaks, as scientists and survival experts join forces to fight brutal conditions to help change the world.

A documentary mini-series that chronicles NASA's historic journey to the moon.

From Pete, David and Leila - the creators of History Time, Voices of the Past and Something Incredible. From dust to dinosaurs; come with us as we explore the entire history of our planet. History of the Earth tells the entire story of the Earth, from its formation 4.5 billion years ago to today – covering eye-watering geology and bizarre biology along the way.

Survival expert Hazen Audel treks through Africa's Great Rift Valley on an extreme expedition to see rare and magnificent wildlife out in the open.

An eight-part docuseries capturing the story of one man’s remarkable 33-day journey cycling 3,000 miles across the United States on a mission to engage with people from all walks of life in real conversations about faith, their stories and things that matter most.