As the Arctic Circle's short summer nears its end, The Last Alaskans begin their preparations for another winter on the trapline.

As The Last Alaskans settle in to their fall routines in preparation for winter's trapping season, several visitors make their way out to the cabins. Heimo and Edna roll out the red carpet for their youngest daughter Krinn and new grandson, Colby.

The Last Alaskans are finally home - some for the winter, others for a much shorter stay. Heimo and his youngest daughter Krin hunt for caribou. The Seldens have helpful visitors and an exciting announcement. Bob arrives back at his cabin.

As the seasons turn, the Last Alaskans are gearing up for trapping season. Heimo's newest cabin may have already fallen victim to a marauding bear. Tyler and Ashley are in full swing building a new home for their growing family.

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With winter just weeks away, The Last Alaskans are desperate to fill their smokehouses. The Selden’s all pitch in to haul home Tyler’s recent moose kill. Heimo and Charlie both worry they might not have meat for the winter months ahead.

Winter in the Arctic Refuge usually means go time for The Last Alaskans but this year low snowfall is slowing them down - snow machines and dogsleds are useless in these trail conditions.

As winter tightens its grip, the days grow shorter for The Last Alaskans and that means less daylight for checking traps. Heimo and Edna's fur count is way down and when wolves invade their traplines, Edna takes matters into her own hands.

Winter loosens its grip on the frozen north and The Last Alaskans celebrate the sun’s reappearance on the horizon. In the Season 3 finale, big changes are on the horizon.

Charlie scrambles to secure his first big kill and rebuild his traplines. Heimo's daughter Krin and family arrive in the refuge but are tested immediately when their cabin is uninhabitable. Bob struggles with his health.

Sunlight returns to the Arctic National Wildlife Refuge in the Season 1 finale, but Heimo is still stunned by a blast of extreme cold. Meanwhile, the Seldens move into a new cabin; and Bob mulls his future after his worst season in 40 years.

A hunt for a bull moose, which can feed a family for the winter, is critical before temperatures drop to 50 degrees below zero and can make being outdoors even more dangerous.

The first day of darkness arrives, but Heimo's in jeopardy of being caught miles from home. Meanwhile, the Lewis daughters get ready to leave the refuge to live on their own in town.

Tracking a caribou herd, Heimo's daughter Krin and her husband Scott are out to prove they can make it in the refuge. Tyler and Ashley look to make a major improvement running water in their cabin.

As moose season opens, the hunt is on to get meat for the winter.

As winter closes in, Tyler is on a desperate hunt to get a moose that can feed his family. With the river freezing over, Heimo and Scott race to get his boat off the water. Bob's daughter and ex-wife return to his cabin to honor his memory.

It's Fall In the Arctic National Wildlife Refuge, and that means animals are on the move. Heimo pursues the tail end of the caribou migration, a bear ransacks Bob's cabin, destroying 2 years of dry meat, and the Lewis family arrives to sign of moose.

Winter is coming, so Heimo pursues a moose that will feed Edna and him for months. Meanwhile, Bob packs up his hunting gear, but runs into trouble when his boat's engine malfunctions; and Tyler and Ashley find their cabin flooded by a rising river, and later, after a week of salmon fishing, their catch is raided by a bear.

Preparations for winter continue, and focus centers on finding food. Heimo pursues caribou meat, while Tyler & Ashley score big game, building their confidence in the bush. Bob & his daughter reminisce on the past as they arrive at their cabin home.

Winter's end is approaching as Bob trains his puppy to be a hunting dog. Meanwhile, Ray adjusts to life without his daughters; and Heimo tests his physical limitations.

Heimo still needs a moose; the Seldens embark on the next part of their trapline journey; Charlie Jagow is introduced.

Heimo begins trapping, but must find a way across a newly frozen river; Bob deals with the fallout of his plane crash; Ray and his daughters try to increase their food supply.

The sun returns, signaling late winter in ANWR. An unwelcome intruder threatens Tyler and Ashley's success. Heimo and Edna say a final goodbye to their oldest cabin, while Charlie meticulously builds his very first and reflects on his future in the bush. The Seldens embark on a 4-day trapping loop that could lead them through dangerous conditions. Heimo must compete with a pack of wolves to secure a moose for winter. The Lewis cabin is rehabbed, but the girls still have a lot to learn about this new home.

Tyler and Ashley are threatened by an intruder; Heimo and Edna say farewell to their old cabin; Charlie builds his first habitat.

The loss of Bob Harte is felt across the Refuge. Heimo boats to Bob's cabin to bring Bob's possessions to his family. Charlie recovers his father's shotgun from a hidden cache and hunts small game. Edna prepares her favorite meal, caribou head.