The Tracker's Diary: Bears of Katmai

Wildlife cameraman Gordon Buchanan helps to rehabilitate six orphaned baby grizzly bears into the Russian wilderness

Join wildlife cameraman, Gordon Buchanan, as he tries to gain the trust of a wild bear family in a spectacular American wilderness.

Three-part series that looks at a year in Alaska, revealing the stories of pioneering Alaskans, both animal and human, as they battle the elements and reap the benefits of nature's seasonal gold rush.

Profiles of some of the men who choose to live off the grid in the unspoiled wilderness, where dangers like mudslides, falling trees and bears are all part of everyday life.

Viewers go deep into an Alaskan winter to meet six tough and resilient residents as they try to stay one step ahead of storms and man-eating beasts to make it through to spring. The closest neighbor to Sue Aikens is more than 300 miles away. Eric Salitan subsists solely on what he hunts and forages. Chip and Agnes Hailstone catch fish for currency in bartering for supplies, and Andy and Kate Bassich use their pack of sled dogs for transportation.

Follows the bears of Alaska's Katmai National Park as they bulk up for winter hibernation. Over 150 days, the bears battle the elements – and each other – using brains and brawn to consume three million calories and gain up to 200 pounds in Nature’s real-life survival show.

In the frontier town of Nome, Alaska, there’s a gold rush on. But you've never seen gold mining like this before — here, the precious metal isn't found in the ground. It’s sitting in the most unlikely of places: the bottom of the frigid, unpredictable Bering Sea. And there are a handful of people willing to risk it all to bring it to the surface.

Big Bear Week

Following an elite crew of workers-- brakemen, engineers, construction crews, mechanics and train drivers – Railroad Alaska illustrates the battle against ferocious weather and treacherous terrain to keep the State of Alaska’s critical 500-mile long railroad rolling to deliver life sustaining supplies. From controlled avalanches to prevent catastrophe, to fascinating characters, like Jim James, the one-handed handy man, learn what it takes to keep this train on track.

Alaska is known for its great beauty and inspirational landscapes. However, it is equally as notorious for its rugged terrain, brutal winters and remote locations. Still, like everywhere, life goes on in Alaska throughout the dead of winter. Everyday tasks often become extraordinary challenges. But, with the help of colossal equipment and machines, residents are able to not only endure, but thrive and enjoy among the sub-zero temperatures, steep mountainous terrain and fragile–sometimes deadly–ice. New Science Channel series Alaska Mega Machines examines the science behind how these machines are engineered for survival in the last frontier.

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.

Power & Ice introduces viewers to the brave men who maintain and build the remote and rugged Alaskan power grid. The series follows three fiercely competitive line companies as they battle freezing temperatures, devastating storms and zero visibility to bring power to people whose lives depend on a constant flow of electricity. The highly skilled employees of Alaska Line Builders, Electric Power Constructors and City Electric will compete for the life-threatening big-money jobs found only in the 49th State. These men work in a dog-eat-dog world, but they get a charge from putting their lives on the line.

Michael Portillo heads for the Last Frontier of the United States armed with his 1899 Appleton's Guide-Book to Alaska.

Amid the untouched backdrop of Alaska, people go missing at an eerily high rate. It’s a place where people can go to get away from everything, where you can live off the grid and hide in plain sight. For a murderer, it provides the perfect cover to commit the perfect crime. often incorrectly refer to as Alaska:ice cold killers

Home to some of the world's best fishing and hunting, Kodiak Island is a sportsman's paradise. Made up of virtually untouched wilderness, 'The Rock,' as it's known to locals, is also frequented by deadly predators and erratic weather. Experience the struggles of three multi-generational families risking it all to make a living in this dangerous environment.

The cameras are turned on a must-see natural spectacle that plays out across the vast Alaskan wilderness, where some of the world’s most remarkable animals – bears, wolves, moose, orcas and eagles – gather by the thousands to take part in Alaska’s summer feast, an event never before captured live on television.

S bráchou na Aljašce

They are some of the toughest, most extreme survivalists from across the nation. In the second season of Ultimate Survival Alaska, four teams - woodsmen, mountaineers, military veterans, and endurance athletes go head-to-head in an epic arctic competition that only National Geographic could inspire.

Investigating homicide cases in Alaska and the darkness that lurks within America's Last Frontier.

Deep in Alaska an expert team of film-makers follow the astonishing lives of grizzly bears.