Laura Zerra

Scrambling from the start, 12 elite survivalists take on their harshest location yet, the sub-freezing Rocky Mountains of Montana. Jake injures his feet during insertion but tries to push through. Severe dehydration puts a survivalist's challenge at risk.

With Joe on the brink, Ky and Gabby secure the first food win. Wes and Jermaine struggle after drinking tainted water. Teams fortify their shelters against the cold. 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.

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.

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.