Season 3 begins with four teams, Endurance, Military, Alaskans and a brand new team called the Lower 48. In this first leg they must reach their Landing Zone (LZ) target - the summit of Mount Gerdine. Along the way they will cross melting frozen lakes, climb ice walls and traverse a crevasse filled glacier. Written by benlowe53

On leg four, teams travel by land and water, as they charge toward the extraction LZ on an ocean inlet. The adventurers choose to either take boats down one of the most notoriously dangerous rivers in Alaska, or make a grueling trek over a mountain pass. The Alaskans take two inflatable canoes down the deadly rapids. Barely making it out alive, the Alaskan vets attempt to ride a massive tidal wave known as the Turnagain Arm bore tide.

On leg three, teams descend 2,000 ft of snowy ridges, bush-covered slopes and spongy swamps to reach the LZ. At the insertion flag, the adventurers find a cache of dog sleds, skis, snowshoes and packrafts. Lel's rookie mistake leaves the Endurance team immobilized. The Alaskans grab skis and set off across the snowy plateau to bush ski. But Vern thinks fast to get them quickly across the tundra after getting caught in the deep snow.

Teams must choose between trekking over a mountain pass or maneuvering their boat through one of Alaska's most dangerous rivers as they race to reach an ocean inlet in the fourth leg of the competition.

In leg six, the teams are inserted into the heart of Alaskan gold country. Slashing through a thorny gauntlet of devil's club, they charge for the insertion flag. Some head for the high ground to escape the dungeon of thorns, while others bushwhack directly through the forest. Fed up with Lower 48's lack of communication, Sweeney goes rogue, leaving Kasha and Cluck behind.

In leg six, the teams are inserted into the heart of Alaskan gold country. Slashing through a thorny gantlet of devil's club, they charge for the insertion flag. Then the teams begin leg seven on remote tundra in the shadow of Mount McKinley. The area is known for being some of the most brutal, inhospitable terrain in Alaska.

Dropped on Kodiak Island, the hunters become the hunted, as teams face their fiercest challenge yet: Kodiak brown bears. Chased downstream by a brown bear, the Military team must choose to jump off a forty-foot waterfall, or become the beast's next meal. The Alaskans take a direct route straight through the heart of bear country and when one man gets separated from the team, he comes face-to-face with a massive predator.

In leg ten, the teams continue in the Kodiak Islands, this time, with the choice of traveling by land or sea. The Military team charges up a mountain peak and dehydration soon sets in. The Lower 48 team travels by sea kayak but a giant pod of whales threatens to sink their expedition. The Endurance team must drag a sick teammate to the LZ and the Alaskan's trip through violent rapids sends one kayaker in over his head.

The teams are dropped on the banks of the Tazlina River and tasked with building log rafts. Faced with punishing rocks and class four whitewater, their designs are crucial to their success and survival.

Dropped on Kodiak Island, the hunters become the hunted, as teams face their fiercest challenge yet: Kodiak brown bears. Chased downstream by a brown bear, the Military team must choose to jump off a forty-foot waterfall, or become the beast's next meal. The Alaskans take a direct route straight through the heart of bear country and when one man gets separated from the team, he comes face-to-face with a massive predator.

In leg ten, the teams continue in the Kodiak Islands, this time, with the choice of traveling by land or sea. The Military team charges up a mountain peak and dehydration soon sets in. The Lower 48 team travels by sea kayak but a giant pod of whales threatens to sink their expedition. The Endurance team must drag a sick teammate to the LZ and the Alaskan's trip through violent rapids sends one kayaker in over his head.