Winter has arrived and with it a scramble to gather any remaining necessities.

Residents take advantage of warm winter weather to complete essential chores.

Residents take advantage of rare weather and work to increase their chances of survival as winter approaches.

Residents take care of essential builds and chores as spring arrives at Port Protection.

The residents of Port Protection work together to make improvements in their community.

When Gary makes a supply trip to Wrangell, Alaska, Hans and Timbi ask him to bring back some precious cargo the entire community is counting on.

A 56-year resident, Sam, makes the most of what he has; in order to extend the wear of his boots using mink oil, he must first find and trap the minks.

The coming of winter means not only a change in weather, but also a change in priorities for the residents of Port Protection.

The residents of Port Protection deal with tasks and challenges as the spring season progresses.

Winter is fast approaching, and the residents of Port Protection use the remaining days of good weather and daylight to stock their freezers and complete crucial chores.

Winter has arrived, but residents continue to push their limits and expand their means.

Residents deal with the forces of nature once again; Curly takes on pesky beavers in an effort to support the community.

Sam goes hunting for a Sitka black-tailed deer with one of his oldest hunting partners.

Residents tackle repairs and community duties as the mild winter comes to an end.

As winter's end approaches, the change of season means new opportunities open up while closing the door on others.

Port Protection residents combat unpredictable weather as a strange winter comes to a close.

Searching for a natural remedy for Hans' aches and pains; trying to pull a tree from the forest; a camping trip into the wilderness to hunt bear.

Spring brings a host of chores and opportunities to Port Protection.

Using borrowed equipment to catch halibut; returning to some old hunting grounds; building a vertical access wind turbine out of junk and scrap metal.

The arrival of Spring in Port Protection means there is much work that has to be done, despite erratic bursts of rain, sleet and snow.

The Alaskan wild offers game for those in Port Protection willing to make the hunt.

When bears, wolves and foxes are your only neighbors, life can be pretty lonely. Add minus-60-degree days and a constant battle for the most basic necessities, and you have the daily challenges of people who live in remote corners of Alaska. This series takes viewers deep into an Alaskan winter to meet tough, resilient residents as they try to stay one step ahead of storms and man-eating beasts to survive the season. 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. Also highlighted is a time of year not always part of what viewers see in Alaska: spring! Ice is breaking, animals are waking, and residents face new tests before deep cold returns.

Extreme survivalists go head to head in a race across the Alaska wild. Using ingenuity, experience and just the gear they can carry in their packs, the participants have 60 hours to reach the finish point of each leg of the adventure -- the series features 13 legs -- and in addition to navigating treacherous glaciated river valleys, barren ridgelines, and high mountain peaks, the challengers battle hunger, dangerous predators and unpredictable weather. There is no grand prize awaiting each leg's winner, other than the pride of accomplishing a grueling feat. For season three, the 12 competitors are divided equally into four teams -- Military, Endurance, Alaskans and Lower 48.

Each year adventurers make Alaska's mighty Yukon River their home for five weeks. They float downstream on homemade log rafts to sell firewood and other supplies to remote villages. The reality-documentary "Yukon River Run" presents hourlong episodes tracking the progress of various crews. As harsh winter months approach and threaten both safety and success, stakes are heightened as rafters endeavor to cash out and escape from the cold.

A seasoned adventurer and survivalist deliberately "strands" himself in remote locales and makes his way back to civilization to provide in-depth advice for travelers who may find themselves lost on what was expected to be a routine hike or other trip.

Famed survivalist Bear Grylls says goodbye to Hollywood and takes celebrities on journeys into some of the wildest locations in the United States and around the world. Whether it's searching for food in the most remote environments or battling intense weather, each episode chronicles the celebrity's experience of pushing their body and mind to the limit to successfully complete the adventure.

Wilderness guide and survival instructor Hazen Audel attempts to stay alive in some of the world's most inhospitable places by using centuries-old techniques. Hazen joins tribes in the rainforests of Ecuador, the Kalahari Desert of Namibia, the mountains of western Mongolia, the frozen Arctic of Canada, in equatorial Kenya, and on a remote island in the Pacific Ocean to learn the skills firsthand. He hunts with bows and poisoned arrows, climbs harsh mountains in search of prey, and harvests food beneath shifting sea ice, among other challenges that push him to his limits.

From the dense woodlands of Montana's Flathead National Forest, to the isolated heart of Idaho's Hells Canyon, to the frozen wastelands of Alaska's high tundra, the adventurers profiled in this docu-reality series live their lives on the edge -- sometimes literally -- transporting essential supplies to an ever-changing cast of fellow off-gridders. Whether by packhorse, dog sled, powerboat, snowmobile or bush plane, the delivery method may differ, but the pioneers share a belief that no job is too tough. Jet boat operator Brice Barnes, packhorse rider Andy Breland, pilot Rob Kinkade, snowmobiler Roger Phillips, and dog musher Jeff Hemann are featured.