Lauro nears the end of the Iditarod, crossing 260 miles of ice along the Bering Sea coast to reach the finish line in Nome. Marty and his friend Dave haul supplies for a cabin into the backcountry and Tom and Will build an elk hide tipi.

Lauro confronts -40° weather, a broken sled and exhausted dogs on the Iditarod Trail while running down the frozen Yukon River. Bret and Ivy haul beaver to finish the season and Tom and Jack carve a traditional peace pipe from rare catlinite stone.

Lauro continues his quest to complete the Iditarod through Alaska's frozen interior and Bret and Ivy pursue a bear into dangerously steep terrain.

Lauro begins the 1,000-mile Iditarod with his sixteen-dog team, pitted against harsh conditions and rugged terrain in one of the toughest races on earth.

Marty withstands a brutal cold snap and Mike carves a narrow road out of a steep ridge.

Mike braves icy waters to catch snow crabs living on the seafloor hundreds of feet below the surface.

Lauro kicks Iditarod training into high gear with a 300-mile run on the Denali Highway and Bret.

Marty battles the brutal Alaskan winter while running his wildfire ravaged trapline in the Far North.

Lauro hunts caribou in white-out conditions on Alaska's North Slope.

Lauro travels north with his team of sled dogs to hunt caribou; Daniel rebuilds a cabin.

Marty searches for a bull moose that vanished in thick brush; Mike packs the meat from a bull elk.

Marty installs floats on his bush plane and flies to a remote lake to hunt moose.