Water is scarce and the hot sun makes energy levels difficult to maintain.

Five days into the Naked And Afraid challenge, Julio claims he has no hunger. At the same time, Tawny experiences hunger pains and continues to hunt for the team.

Tensions flare as resources are put towards building chairs instead of finding food.

Forget pirates and voodoo curses, the scariest thing about Louisiana might just be the mosquitos. Will Michelle be able to make it through 21 days of biting torture?

Keith Busch and Alana Barfield meet for the first time, naked on a remote Fijian island. Will they have what it takes to survive naked and afraid for 21 days?

Sarah from the "Lost At Sea" challenge in Exumas checks in from her sailboat in Hawaii. Still positive and upbeat, Sarah continues to adventure the world whether it be by land of sea.

Kristin is inspired by all the uses, both practical and pretty, she’ll have when she masters the art of taking fibers to make cordage.

Keith goes after a deadly sea snake even though Alana thinks it is a completely unnecessary risk.

During Kim's casting tape for Naked And Afraid, she describes what her ideal partner would be to balance her personality during the 21 Day challenge.

The nights are long and cold during the 21-Day survival challenge. One of the best ways to combat the elements is to snuggle, but not all partners are comfortable.

Sabrina turns to her new "friend" Mushroom Man in her partner's absence. A true castaway moment.

Laura and Nicklas meet in the Australian Outback completely naked. After a few jokes and a hug, they are ready to begin the survival challenge.

Vincent's frustrations with Sabrina begin to boil over. Will the pair make it through 21 days together naked and afraid in Bolivia?

Vincent and Sabrina meet for the first time, naked in the Bolivian jungle as they begin their 21 day survival challenge.

Do you believe in demons? Melissa regales Jeremy with the story of the fateful night that she encountered an incubus.

Gary's time spent around the world in extreme conditions has prepared him for the Naked And Afraid challenge. Learn more about his past from his casting tape.