Marty secured the floats onto his bush plane and then flew toward a secluded lake, his destination a hunt for moose.

Marty tracked a bull moose, its form swallowed by the dense undergrowth. Meanwhile, Mike prepared the meat from a bull elk he had harvested.

Lauro journeyed north with his team of sled dogs, bound for the caribou hunt; meanwhile, Daniel labored to restore a cabin.

On Alaska's North Slope, Lauro navigates the blinding expanse of a whiteout, pursuing caribou.

Against the unforgiving backdrop of the Alaskan winter, Marty perseveres, tending to his trapline in the remote north, a landscape scarred by wildfire.

Lauro is intensifying his preparation for the Iditarod with a demanding 300-mile run along the Denali Highway, accompanied by Bret.

He ventured into the frigid depths, seeking snow crabs that scuttled across the ocean floor, hundreds of feet beneath the waves.

Marty endured a harsh cold spell, while Mike painstakingly carved a path along the face of a steep ridge.

Lauro launches into the grueling 1,000-mile Iditarod, his sixteen-dog team a force against the unforgiving landscape and brutal conditions that define this legendary race.

Lauro presses onward in his attempt to finish the Iditarod, navigating the frozen heart of Alaska. Meanwhile, Bret and Ivy follow a bear into increasingly treacherous, steep country.

Against a biting wind and sub-zero temperatures, Lauro pressed onward, the broken sled and weary dogs a stark reminder of the Iditarod Trail's harshness as he traversed the frozen Yukon River. Meanwhile, Bret and Ivy labored to gather beave…

Lauro is nearing the conclusion of the Iditarod, traversing 260 miles of frozen Bering Sea coastline toward Nome. Meanwhile, Marty and his companion Dave are transporting provisions for a remote cabin into the wilderness, while Tom and Will…