After surviving last year's record breaking cold, the Mountain Men return more prepared than ever to do battle against Mother Nature, but unpredictable extremes in an ever-changing world force them to find new ways to adapt or die.

Tom defends his home against a bear threat while Morgan makes a deadly miscalculation on thin ice.

Morgan gets caught in the grips of an ice desert with no shelter in sight and Marty's return to Alaska's Revelation Mountains takes an unexpected turn.

Winter's uneven arrival causes mayhem in the mountains, putting Rich on the front lines of a new war against predators and pushing Tom to the brink.

Winter's uneven arrival causes mayhem in the mountains, putting Rich on the front lines of a new war against predators and pushing Tom to the brink.

Winter's uneven arrival causes mayhem in the mountains, putting Rich on the front lines of a new war against predators and pushing Tom to the brink.

Winter's uneven arrival causes mayhem in the mountains, putting Rich on the front lines of a new war against predators and pushing Tom to the brink.

Winter's uneven arrival causes mayhem in the mountains, putting Rich on the front lines of a new war against predators and pushing Tom to the brink.

Winter's uneven arrival causes mayhem in the mountains, putting Rich on the front lines of a new war against predators and pushing Tom to the brink.

Morgan climbs into the treacherous Alaska Range; Rich goes to war with the wolves.

Morgan climbs into the treacherous Alaska Range; Rich goes to war with the wolves.

Morgan climbs into the treacherous Alaska Range; Rich goes to war with the wolves.

Morgan climbs into the treacherous Alaska Range; Rich goes to war with the wolves.

Morgan climbs into the treacherous Alaska Range; Rich goes to war with the wolves.

Morgan climbs into the treacherous Alaska Range; Rich goes to war with the wolves.

Morgan walks into a death trap in the Alaska Range when a whiteout strikes in an avalanche zone.

Morgan walks into a death trap in the Alaska Range when a whiteout strikes in an avalanche zone.

Morgan walks into a death trap in the Alaska Range when a whiteout strikes in an avalanche zone.

Morgan walks into a death trap in the Alaska Range when a whiteout strikes in an avalanche zone.

Morgan walks into a death trap in the Alaska Range when a whiteout strikes in an avalanche zone.

Morgan walks into a death trap in the Alaska Range when a whiteout strikes in an avalanche zone.

Marty discovers an unexpected advantage and Rich mounts a search for a lost friend.

Marty discovers an unexpected advantage and Rich mounts a search for a lost friend.

Marty discovers an unexpected advantage and Rich mounts a search for a lost friend.

Marty discovers an unexpected advantage and Rich mounts a search for a lost friend.

Marty discovers an unexpected advantage and Rich mounts a search for a lost friend.

Marty discovers an unexpected advantage and Rich mounts a search for a lost friend.

Morgan stakes out his next meal to fight off starvation; Marty discovers an unexpected jackpot.

Morgan stakes out his next meal to fight off starvation; Marty discovers an unexpected jackpot.

Morgan stakes out his next meal to fight off starvation; Marty discovers an unexpected jackpot.

Morgan stakes out his next meal to fight off starvation; Marty discovers an unexpected jackpot.

Morgan stakes out his next meal to fight off starvation; Marty discovers an unexpected jackpot.

Morgan stakes out his next meal to fight off starvation; Marty discovers an unexpected jackpot.

Tom's run of bad luck intensifies, but he refuses to give up; Morgan closes in on his goal and Marty prepares for his family's arrival on the line.

Tom's run of bad luck intensifies, but he refuses to give up; Morgan closes in on his goal and Marty prepares for his family's arrival on the line.

Tom's run of bad luck intensifies, but he refuses to give up; Morgan closes in on his goal and Marty prepares for his family's arrival on the line.

Tom's run of bad luck intensifies, but he refuses to give up; Morgan closes in on his goal and Marty prepares for his family's arrival on the line.

Tom's run of bad luck intensifies, but he refuses to give up; Morgan closes in on his goal and Marty prepares for his family's arrival on the line.

Tom's run of bad luck intensifies, but he refuses to give up; Morgan closes in on his goal and Marty prepares for his family's arrival on the line.

Morgan's survival hangs on a critical airdrop; gale-force winds threaten to destroy Marty's cabin; Tom finally gets a breakthrough that could end his losing streak.

Morgan's survival hangs on a critical airdrop; gale-force winds threaten to destroy Marty's cabin; Tom finally gets a breakthrough that could end his losing streak.

Morgan's survival hangs on a critical airdrop; gale-force winds threaten to destroy Marty's cabin; Tom finally gets a breakthrough that could end his losing streak.

Morgan's survival hangs on a critical airdrop; gale-force winds threaten to destroy Marty's cabin; Tom finally gets a breakthrough that could end his losing streak.

Morgan's survival hangs on a critical airdrop; gale-force winds threaten to destroy Marty's cabin; Tom finally gets a breakthrough that could end his losing streak.

Morgan's survival hangs on a critical airdrop; gale-force winds threaten to destroy Marty's cabin; Tom finally gets a breakthrough that could end his losing streak.

In Alaska, Marty Meierotto completes his cabin build just in time for his family to touch down in the Revelation Mountains. While in Montana, Rich Lewis has a real-life cliffhanger as his dogs go one step too far in the pursuit of a bobcat.

In Alaska, Marty Meierotto completes his cabin build just in time for his family to touch down in the Revelation Mountains. While in Montana, Rich Lewis has a real-life cliffhanger as his dogs go one step too far in the pursuit of a bobcat.

In Alaska, Marty Meierotto completes his cabin build just in time for his family to touch down in the Revelation Mountains. While in Montana, Rich Lewis has a real-life cliffhanger as his dogs go one step too far in the pursuit of a bobcat.

In Alaska, Marty Meierotto completes his cabin build just in time for his family to touch down in the Revelation Mountains. While in Montana, Rich Lewis has a real-life cliffhanger as his dogs go one step too far in the pursuit of a bobcat.

In Alaska, Marty Meierotto completes his cabin build just in time for his family to touch down in the Revelation Mountains. While in Montana, Rich Lewis has a real-life cliffhanger as his dogs go one step too far in the pursuit of a bobcat.

In Alaska, Marty Meierotto completes his cabin build just in time for his family to touch down in the Revelation Mountains. While in Montana, Rich Lewis has a real-life cliffhanger as his dogs go one step too far in the pursuit of a bobcat.

Marty has trouble on the trap line. The lumbering operation has to make a tough decision.

Marty has trouble on the trap line. The lumbering operation has to make a tough decision.

Marty has trouble on the trap line. The lumbering operation has to make a tough decision.

Marty has trouble on the trap line. The lumbering operation has to make a tough decision.

Marty has trouble on the trap line. The lumbering operation has to make a tough decision.

Marty has trouble on the trap line. The lumbering operation has to make a tough decision.

An early melt brings Marty's record run to a screeching halt; Tom gets an unexpected boost and Eustace rushes to finish his logging job before spring.

An early melt brings Marty's record run to a screeching halt; Tom gets an unexpected boost and Eustace rushes to finish his logging job before spring.

An early melt brings Marty's record run to a screeching halt; Tom gets an unexpected boost and Eustace rushes to finish his logging job before spring.

An early melt brings Marty's record run to a screeching halt; Tom gets an unexpected boost and Eustace rushes to finish his logging job before spring.

An early melt brings Marty's record run to a screeching halt; Tom gets an unexpected boost and Eustace rushes to finish his logging job before spring.

An early melt brings Marty's record run to a screeching halt; Tom gets an unexpected boost and Eustace rushes to finish his logging job before spring.

Marty makes a gamble that changes everything; a storm batters Eustace and Preston during their final push.

Marty makes a gamble that changes everything; a storm batters Eustace and Preston during their final push.

Marty makes a gamble that changes everything; a storm batters Eustace and Preston during their final push.

Marty makes a gamble that changes everything; a storm batters Eustace and Preston during their final push.

Marty makes a gamble that changes everything; a storm batters Eustace and Preston during their final push.

Marty makes a gamble that changes everything; a storm batters Eustace and Preston during their final push.

A predator returns just when Tom can least afford it. Marty runs out of daylight, and Rich battles back the wolves.

A predator returns just when Tom can least afford it. Marty runs out of daylight, and Rich battles back the wolves.

A predator returns just when Tom can least afford it. Marty runs out of daylight, and Rich battles back the wolves.

A predator returns just when Tom can least afford it. Marty runs out of daylight, and Rich battles back the wolves.

A predator returns just when Tom can least afford it. Marty runs out of daylight, and Rich battles back the wolves.

A predator returns just when Tom can least afford it. Marty runs out of daylight, and Rich battles back the wolves.

It's a race against the end of winter as the melt sets in. Marty gambles on thin ice, a predator awakens in the Yaak and Rich launches a rescue mission.

It's a race against the end of winter as the melt sets in. Marty gambles on thin ice, a predator awakens in the Yaak and Rich launches a rescue mission.

It's a race against the end of winter as the melt sets in. Marty gambles on thin ice, a predator awakens in the Yaak and Rich launches a rescue mission.

It's a race against the end of winter as the melt sets in. Marty gambles on thin ice, a predator awakens in the Yaak and Rich launches a rescue mission.

It's a race against the end of winter as the melt sets in. Marty gambles on thin ice, a predator awakens in the Yaak and Rich launches a rescue mission.

It's a race against the end of winter as the melt sets in. Marty gambles on thin ice, a predator awakens in the Yaak and Rich launches a rescue mission.