A bigfoot believer who is afraid of the dark; a tough mom who has never left home.

An independent mother of three, plus a jungle savvy Green Beret, take on the remote wetlands of Guyana. Battling disease-carrying sand flies, venomous snakes, and an infestation of caiman present huge challenges. Can this pair survive?

AK, a past survivalist, returns for her chance at redemption. Her partner Jason joins her in tackling the jungle of Guyana, but the two have different priorities. Starvation sets in causing tension to rise. Will they come together and survive the 21 days?

Two survivalists with opposite personalities try to survive for 21 days in the deadly Colombian jungle.

Cast member Chris shares new insights; two survivalists are dropped on a deserted Dominica beach where they must endure a barren tropical terrain.

Interviews with cast members Jeff and Eva; two survivalists journey to Madagascar and take on the unforgiving Massif D'Isalo.

Interviews with cast member Dani; two survivalists test their skills on Andros Island in the Bahamas.

Interviews with cast member Luke; an unlikely pair of survivalists must endure the unforgiving African savannah of Namibia.

Cast member Laura provides new insights; two survivalists are threatened by snakes and crocodiles while on a Panamanian island.

Cast member Honora shares her thoughts; two people are dropped onto the sun-scorched, desolate sand dunes of Brazil.

Interviews with cast member Shane; two survivalists are challenged to make it 21 days in the Costa Rican rainforest.

Interviews with cast member E.J.; two survivalists must withstand 21 days in the predator-filled environment of the African Serengeti.

Two survivalists must endure the high altitude and extreme cold of the Himalayan foothills in northern India.

Interviews with cast member Alana; two survivalists are dropped on a deserted Fijian island where they must battle the blistering heat.

A Navy vet and a military mom tackle the harsh conditions of Mexico's uninhabitable Cayo Venado. A prowling black panther, tree sap poisonous to the touch, and a week of freezing rain lead this pair of survivalists right up to the breaking point.

Footage of the survivalists reveals good, bad, awkward and weird moments from their various adventures.

A New Yorker and a nature-loving vegetarian attempt to survive in the Colombian jungle for twenty one days.

Survivalists endure Guyana's equatorial savannah, battling health issues, a breakdown in team dynamic and survival malfunctions.

A workaholic mom and a loner are challenged to survive three weeks in Thailand. Competing with monkeys and rats for food, it's a daily struggle not only to survive, but to understand each other. Will they be able to come together as a team?

Avid outdoorsman Trenton and novice survivalist Jen take on high elevation in the peaks of Udhampur, India. With relentlessly cold nights and an unexpected wildfire, their chances of surviving the 21-day challenge might go up in flames.

Christina and Steve have to live in the Mexican jungle of Quintana Roo for three weeks.

Two survivalists take on the hot and hellish conditions of Guyana's equatorial savannah. Slammed from day one by the heat, they battle debilitating health issues, a team dynamic breakdown, critical survival malfunctions and a massive psychological decline.

Luke, a go-getter from Southern California, and Alyssa, a positive survival instructor, take on the rugged coast of the Yucatan. As dehydration, hunger, and the threat of caiman kick in… will the survivalists win or lose to this perilous coastline?

Christina and Steve take on the Mexican jungles of Quintana Roo for 21 days. But with each sleepless bug-filled night tensions between them mount, and in the end, the greatest threat to their survival might be each other.

An Army mother and a Marine test their military survival training to the test in the Florida Everglades.