In desperate need of protein, Fernando attempts to catch a fish with his bare hands.

Cass and Shannon meet for the first time - naked in Belize - as they begin their 21-day survival challenge.

Cass and Shannon run across an ancient cave system during their 21-day survival challenge in Belize.

Will Jeff stray from his deep religious beliefs in order to stay warm at night, or will he and Eva continue to sleep separately in the cave of black widows?

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

Fernando Calderon and Samantha Pearson meet for the first time - naked - in Malaysia.

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

The mosquitoes in the Amazon jungle are relentless. AK and Tyler have bug bites everywhere - and nakedness takes its toll.

Leeches invade the private parts of these two Naked and Afraid survivalists in Malaysia.

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

Desperate for drinkable water, Keith and Alana attempt to purify water using hot rocks.

Jeff and Eva arrive in Madagascar and strip down for their 21-day naked survival challenge.

Jeff has a personal vendetta against a lizard in Madagascar. When he finally captures it, what he does next will shock you.

On the first night of their 21-day survival challenge, the castaways are pummeled with rain, soaking them to the core.

The castaways spot a snake under a rock. Will it be their dinner, or will they be its next prey?

While squishing through the muddy jungle, a naked castaway spots a snake and needs her partner's aid.

Kellie and EJ fish for their next meal in the mud. Kellie uses a patient approach - and her nakedness works to her advantage.

Kelly shares the effects of dehydration and sleep deprivation on both her and EJ over the first four days of their survival challenge in Tanzania.

Fan-turned-survivalist Paolo, one of the winners from our Show Us What You Got contest, is taking on a special Naked And Afraid challenge. He’s focused on proving that he has what it takes, even though he’s not a survival expert.

Steve and Christina prepare for the biggest survival challenge of their lives. Watch them strip down and meet each other for the first time in Quintana Roo.

EJ is a bit jealous that Kellie caught more fish than him, but thankful that they were able to eat.

Steve and Christina reunite after their challenge to reveal what almost brought them to tapping out, what kept them going, and why getting in touch with their emotions in Quintana Roo changed their lives forever.

When the rain stops, the animals all come out at once. These survivors try to avoid snakes lurking in every direction.

Think you’ve been #NakedAndAfraid? Sure, you could have a mishap while moving into a new apartment... but that’s nothing compared to the Naked And Afraid challenge!

Kellie takes a mud bath as she and EJ search for shade during their Tanzanian survival challenge.

Each week on Naked & Afraid, a new pair of strangers must learn to survive together for 21 days with no food, no water, no tools...and no clothes.

Shelter is one of man's basic needs. Watch Naked And Afraid survivalists craft a primitive shelter fit for a jungle king.

At the end of day three, Kelly reflects on EJ's successful attempt to create fire using the fire plow method.

Steven and Chalese come across a timber rattlesnake while surviving in Alabama. The timber rattlesnake is one of the most dangerous snakes in North America.

If you think you've got what it takes to survive Naked and Afraid like Hakim, #ShowUsWhatYouGot!

Thirsty? Learn about drinking from water vines in the unforgiving Costa Rican jungle.

EJ talks about building a pair of shoes using bark.