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.

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.

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.

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.

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.

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.

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.

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.