As winter closes in, Morgan and Margaret fly North to track down the great caribou migration and secure meat; Marty preps his trapline for the arrival of his daughter, Noah; Jake starts his season tracking two lions. Eustace takes on an apprentice and uncovers some illicit activity on his new land; Kidd and Harry rescue horses from a pack of hungry wolves.

Kidd and Harry set their sights on bagging a buffalo; Jake goes after a mountain lion caught too close to civilization; and Morgan fights the deadly skies of Alaska in a race to resupply his homestead.

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Eustace and Raleigh battle a polar vortex to get their lumber business back online; Mike braves a bear-infested landscape in search of fresh meat; Morgan and Margaret chase the migrating caribou, hoping to secure enough food for winter.

Tom and Sean face off against a coyote threat; Eustace and Raleigh enlist some much-needed help building their lookout cabin; Jason takes one final crack at creating Ozark steel; Morgan and Margaret push deep into the back country.

Jake hunts a lion caught stalking a school bus stop; Tom sets out to end his trapping season on a high note; Eustace and Raleigh struggle to put a roof on their outpost cabin; Morgan and Margaret prepare their horses for a critical supply run.

Eustace and Raleigh set out in search of a deer to replenish their food stores; Jason faces the moment of truth in his attempt to create his own steel; Jake hauls 400 pounds of fresh elk meat out of the mountains; Kidd and Harry pack supplies.

As night descends across the mountains, Mike treks through bear country with fresh meat on his back; Morgan battles dark and dangerous terrain in a last-ditch effort to fill his freezer; Jake's latest lion hunt takes him deep into wolf territory.

Jake will do anything to get his injured dog to the vet; Tom and his brother are left high and dry when the well on his ranch stops pumping; Mike has to go back on the hunt after bears pillage his provisions.

Tom turns coyotes into cash; Eustace and Raleigh take to the forge to raise money for roofing materials; Mike scouts bears for the spring hunting season; Morgan and Margaret go fishing.

Jake sets off alone on the hunt for elk meat; Jason rolls the dice on an experimental smelter; Morgan and Margaret combat a critical water problem; Mike targets Kodiak Island's most dangerous quarry; and Marty bids a final farewell.

Kidd and Harry battle time and rough terrain on a backcountry supply run; Jake and his dogs track down a repeat offender; Tom gets back to business in the Yaak; Morgan checks his remote trapline for high-dollar fur.

Jake has a problem lion on his hands and soon discovers it's not alone; Tom and his brother, Jack, break down on the road to the Yaak Valley; Morgan crosses the Great Alaska Range on an emergency supply run.