Marty guides Noah through her first bush plane landing at a remote caribou camp while Mike hauls a 50-foot gangway across land and sea to his Kodiak homestead.

Marty flies to new hunting grounds in search of an elusive caribou herd and Lauro and Neil build a trapping and fishing camp to help feed their sled dogs.

Chance and Soraya slaughter a ram to provide meat for their growing family while Lauro begins preparation for this year's Iditarod by taking his team on a fall training run.

Bret and Ivy bust through sheets of lake ice to ferry critical equipment to their cabin by boat and Lauro and Virginia use the dog team to haul fresh cut timber from the forest for a log cabin build.

Lauro guides his dog team through frozen wilderness to reach Neil at a remote trapping camp. On his homestead, Mike digs a root cellar into the hillside. Ivy hunts grouse while Bret preps for the upcoming season by building and boiling his gear. Chance and Soraya begin building a log barn to shield their livestock from winter. In Montana, Jake makes a daring climb to save one of his stranded dogs.

While hunting for meat, Mike crosses paths with a prowling brown bear and her cub. Chance races the first snow to finish his livestock barn. Lauro and Neil smash through thick river ice to harvest beaver and fish. Bret and Ivy scale their cabin roof to install solar panels and power their homestead with clean energy. Meanwhile, Paul hits the jackpot on his coyote and beaver traplines.

Mike journeys to an uninhabited island to hunt a herd of wild buffalo with help from the local natives; Lauro pushes himself training for the upcoming Iditarod with a grueling 260-mile run through the Alaskan wilderness.

Lauro begins the longest Iditarod in the history of the famous sled dog race; Mike hunts elusive and rare silver foxes along the shoreline of Kodiak Island; Chance works to support his family through sub-zero temperatures on the trapline while Soraya prepares for the imminent arrival of their new baby; after a lifetime in the wild, Tom finally contemplates retiring from trapping; Jake has a terrifying day when his dog takes a 50-foot dive from a tree.

Marty rebuilds a snowmobile from scratch before facing off with a wolverine menace on his trapline; Lauro feels the fatigue on the Iditarod trail and makes a wrong turn in the dark; Bret and Ivy ascend high into the Alaska Range to hunt dall sheep.

Lauro barrels to the finish line of the Iditarod along the frozen Bering Sea coast; Mike fights to salvage his Kodiak Island homestead after a bear invasion; Chance makes a push into uncharted territory on his trapline; Jake corners a tomcat.

Lauro embarks on a new solo adventure with his dog team across the unforgiving Arctic wilderness; Bret and Ivy run into trouble when their traps vanish under several feet of solid ice; Chance's bold push into new trapping territory pays off big, leaving him and Soraya with a haul of marten to skin; Jake chases down the giant tom lion that gave him the slip a week earlier; Paul taps the raw power of pure skunk essence to concoct his most potent trapping lure yet.

Tom goes for one final ride on the trapline to pull his last sets before passing the torch to Sean and Hank; Jake has a showdown for the ages when three lions are cornered in a single tree; Marty makes a last ditch run at the wolverine that has decimated his trapline all season; Lauro explores the Arctic sea ice by dog team and hunts caribou on the frozen tundra; Mike races to rebuild his cookhouse in the wake of a devastating bear invasion.

Tom Oar shares his hard-earned survival secrets forged through a lifetime of experience living in the wild.