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 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.
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 will do anything to get his injured dog, Lefty, to the vet. Tom and his brother, Jack, are left high and dry when the well on his ranch stops pumping. Morgan takes one last shot at bagging a mountain sheep.
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.
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.
