Naked and Afraid

Two foreigners try to become the first survivalists to endure 21 days on U.S soil. But rattlesnakes, unfamiliar terrain and plummeting temperatures threaten to send them back across the pond.

A tough-as-nails MMA fighter and a professional paramedic need to dig deep to attempt to survive 21 days in the brutal caiman infested jungle of Rupunini, Guyana.

An athlete and a hunter take on the Argentine savanna without any gear.

Four male survivalists who tapped seek redemption in South Africa.

Jaclin, a paralegal, and Michael, a fishing boat captain, take on 21 days in the mighty Kalahari Desert. But they soon are hit with an unexpected cold front and aggressive lions and rhinos threatening their shelter.

In this Tribes' episode, two men and a woman attempt to survive 21 days in the searing heat of Limpokwena, South Africa. But after suffering from harsh burns and severe dehydration on Day 1, their will to endure is threatened.

For the first time ever, two Naked and Afraid crew members attempt to survive 21 days in front of the camera. But faced with swarms of unrelenting insects and a lack of food, this history-making duo is about to get a taste of their own medicine.

An expert bow-hunter and Air Force Vet hope to survive in deadly Zambia.

Two fans face the dense, mosquito-infested mangrove of Palomino, Colombia.

Two survivalists attempt to endure 21 days in Mexico's Devil's Canyon, a notorious hellscape where no one else has managed to make it past one week.

Two survivalists battle frigid temperatures in the Argentine wilderness.