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.

After nearly three weeks in the bush, two survivalists have tapped out, 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 biggest challenge of their lives.

The 10 remaining survivalists cross the 21-day milestone and enter into uncharted waters. Scarce resources send the survivalists on a collision course. They fight for their lives with a huge electric eel and are visited by a gigantic puma.

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.

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.

The final, and most difficult, part of the 40-day challenge begins. Jeff & 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.

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.

In a special one-hour preview, 12 Naked & Afraid veterans prepare for the most formidable survival challenge on the planet - surviving 40 days and 40 nights in the sun-scorched bush of South Africa.

For pilot Jason, rescuing stranded climbers with no coordinates, dense clouds, and limited fuel, is a daunting task. An equipment delivery becomes an emergency, when Siddartha and Andy discover a young mother has just given birth & is bleeding out.

With an injured climber stuck in the death zone, veteran pilot Jason preps his heli for the world’s highest landing spot. Rookie Pilot Ryan searches for 9 climbers, stranded in a remote corner of the Himalayas.

Monsoon season brings new dangers. Ryan battles the elements while racing back to Lukla with sick climbers. Andy is plunged into a deadly blackout while flying to rescue a climber with a life threatening head-injury.

Across the Himalayas, pilots are stretched to breaking. Ryan confronts an uninvited climber trying to hitch a ride at 17,500 feet. Jason attempts his highest ever rescue. Lorenz learns some grim realities of flying in the Himalayas.

Jason and Siddartha attempt a mission to prevent deaths along the treacherous Ice Fall, the most danger mile on Earth. Ryan battles violent wind to rescue a climber from base camp. Lorenz has just minutes to save a local man with a head injury.

Final days of the season. With a doctor onboard, Ryan struggles to locate a woman suffering severe abdominal pains. Pushing the helicopter to its maximum, Jason struggles to reach a collapsed climber in the Death Zone.

Trapped in the jagged canyons of Croatia's Velebit Mountain, new partners Grady and Josh must work together to navigate the frigid, fast-moving rapids, and descend treacherous waterfalls in order to find salvation in this remote landscape.