The Peruvian Amazon. A rich, beautiful rainforest where thousands of species of animals and plants want to kill you. Now, meet the 12 survivalists getting dropped in there to begin a new XL challenge. Some going for 40-days, others attempting 60-day legend status.

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