With temperatures plummeting, Heimo pushes into the arctic, desperate to get a moose for winter. Charlie and Tyler look to start their trapping seasons but must overcome devastating fire damage on their traplines.

Heimo tests his trapping skills on both land and water to outsmart one of his favorite catches, beaver. Scott puts lessons learned to the test as he tracks marten. Tyler's plan to run his sled dog team is threatened when the pack turns on each other.

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.

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.

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

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.

Scrambling to finish trapping season, Heimo discovers the best catch so far: a wolf. Charlie walks a legend's footsteps as he works the traplines Bob left to him. Tyler takes on the challenge of getting their hunting cabin ready for next season.

Heimo stalks his best hunting grounds and Tyler tracks caribou as the pressure is on to get a big kill before the harsh Alaskan winter takes hold. Charlie inspects his traplines but damage from summer wildfires puts his season in jeopardy.

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.

Bob visits his daughter, and assesses the damage of his crashed plane; Tyler and Ashley travel 15 miles to a lake cabin to run their dog team and look for food.

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.

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.

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.

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.

With summer fading and trapping season around the corner, Heimo Korth works to build a new cabin for his family. The Seldens settle in and look to fill their larder with moose meat, while the Lewis family attempts to reach an old homestead by boat.

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 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.

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.

With no meat for winter, Heimo's desperate to run his trapline, but has no choice but to hunt for moose. Krin makes a devastating discovery - a wolf pack hunting on her trapline. Tyler and Ashley work together to make the most of a recent moose kill.