Season 1
Overview
The first season takes place in Colombia. All of twelve contestants were separated into four teams of three in the first day of the 40-day challenge.
Episodes

1. Welcome to the Jungle
2015-11-08
A sneak peak at the upcoming season which includes a cast of returning competitors as they attempt to survive in Colombia for 40 days and 40 nights.

2. 40 Days & 40 Nights
2015-11-15
Veteran survivalists are dropped into the badlands of Colombia, where they must survive for 40 days and nights with no food, water or clothes.

3. 40 Days: No Escape
2015-11-22
After a week of being dropped into the dangerous and desolate badlands of Colombia with no food or water, one survivalist has already tapped out, another is on the brink, and hunger, thirst, and distrust are threatening to take down several more.

4. 40 Days: Snake in the Grass
2015-11-29
After fourteen days, many who remain are struggling to adapt to their environment and each other. Some consider migrating to try and find new resources, while in other camps tension continues to rise and may lead to our second tap out of the season.

5. 40 Days: Jungle Rich
2015-12-06
After nearly three weeks in the bush, two survivalists have tapped out and most others are making desperate treks across the savannah in search of food. If they can't find sustenance, they'll be forced out of the most difficult challenge of their lives.

6. 40 Days: Death March
2015-12-12
The 10 remaining survivalists cross the 21-Day milestone and enter into unchartered waters. Scarce resources send the survivalists on a collision course. They fight for their lives with a huge electric eel and are visited in the night by a gigantic puma.

7. 40 Days: Sacrifice
2015-12-20
With 15 days to go in the 40-day challenge, the ten remaining survivalists - dehydrated and protein starved - find themselves converging at dangerous Piranha Lake where they will they compete over scarce food and water.

8. 40 Days: Falling Apart
2015-12-27
After thirty-one days in the Colombian jungle, the pressure is on to get the nourishment they need to survive extraction, but when one member doesn't play by the rules, the future of one group is thrown into jeopardy.

9. 40 Days: Filth and Fury
2016-10-09
The final, and most difficult, part of the 40-day challenge begins. Jeff and EJ decide to attempt their extraction alone, and relationships grow contentious between both teams as they navigate the treacherous landscape to try and finish the challenge.

10. Dirty Dozen Return
2016-10-16
The "dirty dozen" survivors from Naked and Afraid XL come together for the first time since their life-changing 40 day challenge. They'll discuss good times, hard times, and try to heal unresolved issues.