Gabrielle Balassone

Just days before extraction, a grizzly bear mauling leads to a frightening search-and-rescue mission; Montana delivers a ferocious windstorm the night before extraction; Jake's damaged feet have medics looking to pull him from his final challenge.

Scrambling from the start, 12 elite survivalists take on their harshest location yet, the sub-freezing Rocky Mountains of Montana.

Bacteria brings a survivalist to their knees; a painful foot burn has a veteran struggling; conflicting survival priorities spark tension for Amber and Trish.

With Joe on the brink, Ky and Gabby secure the first food win; looking to catch trout, Waz and Jake risk hypothermia to dam a frigid stream; medics must intervene after a fainting spell; a survivalist is forced from the challenge.

Desperate for food, Jake and Waz brave frigid water to build a dam; Gabby takes a huge risk that could lead to hypothermia; Jermaine and Sarah clash over survival strategies; a team secures the first big food win of the challenge.

The Peruvian Amazon's aggressive piranha, venomous fer de lance and even poisonous plants test 12 survivalists. XL rookies look to last 40 days while vets try to make 60 and become Legends. Four survivalists will be gone in the first four days.