In Kavik, Sue's camp is being harassed by grizzly bears. Meanwhile, in Eagle, Andy and Kate have run out of fish - their most vital resource.
Erik goes to extreme heights on Kodiak Island, pushing the limits with a rare chance to hunt elusive prey.
In Alaska, Dark Winter is just around the corner, and Chip and Agnes must set out for their yearly autumn moose hunt.
In Eagle, deadly river conditions mean that Andy and Kate must cut a new trail through dense forest to access vital resources.
In Wiseman, Erik must protect his meat from rogue scavengers, while in Noorvik, the Hailstones battle thick ice to bring home essential food.
Newcomer Cody Allen hopes to learn the intricacies of dog mushing, while for Erik Salitan fur trapping is an important source of income.
In Eagle, Andy's apprentice makes a costly mistake and he runs out of the wood that heats his tent and keeps him alive.
Sue Aikens heads out on an 85-mile unpredictable journey through the Alaskan tundra. Meanwhile, Chandalar Glenn searches for a fire kit.
Chip heads into the wild to find his son and young granddaughter after they fail to arrive at the family home.
In Kavik, a looming blizzard threatens Sue's food supply. In Eagle, a break in the ice may derail Andy's spring projects.
The end of the winter season means that Chip and Agnes have one last chance to harvest fat caribou until late summer.