Laura Zerra

For the first time, twelve 21-day survivalists take on the Colombian Badlands for 40 days and discover that they must travel 40 miles to reach the end. Extreme heat, rain, bugs and deadly cats tests their endurance like never before.

Twelve elite survivalists take on their toughest location yet, Montana's sub-freezing Rocky Mountains.

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.

12 survivalists enter a punishing African location for their 40-day challenge. They encounter deadly crocodiles and territorial leopards.

Dan, Waz and Matt corner one of the Amazon's apex predators, a six-foot caiman. When Trish and Amber's paths cross again, tensions resurface.