After successfully completing Naked and Afraid’s 21-day challenges, twelve brave survivalists up the ante when, for the first time ever, they attempt a grueling 40 days in the punishing Colombian badlands without food, water or clothes. 

This season, the survivalists will take on Naked and Afraid XL’s Proving Grounds and test their mettle by taking on the most extreme challenge, with an unexpected twist. Not only will they endure blood-sucking mosquitos, ants and ticks, disease-carrying parasites, as well as stalking jaguars and a territorial six-foot caiman, but they must now also trek 40 miles across six unique terrains to reach the end of the challenge. Scorching triple-digit temperatures and violent electrical storms that dump up to six inches of rain in a single night will push them to their limits as they strive to become the next wave of Naked and Afraid legends.