Ultimate Survival Alaska

Eight of Alaska's toughest outdoorsmen embark on a challenging ten-leg expedition. The outdoorsmen will have to traverse a three thousand-mile route across the brutal Alaskan terrain.

On the second leg of their 3,000-mile journey through the Alaskan wilderness, the eight tenacious explorers take on the massive Yukon River.

Mountaineer Willi Prittie convinces the team to abseil down a 300-foot cliff, but weather conditions put one of the explorer's lives in danger.

On the fourth leg, the eight explorers struggle to stay afloat as they navigate the whitewater rapids of the Talachulitna river valley.

The explorers brave Alaska's Bear Highway. Surrounded by more than 2,000 brown bears, their route starts at the Valley of Ten Thousand Smokes.

At the halfway mark, the eight explorers are starving. The men barely have enough strength to press on, and the journey isn't getting any easier.