Mountain man Luke and homeschooling mom and triathlete Lindsey are dropped into the dry and thorny landscape of Africa's Namibia. A lack of food, fire and the difficulty of navigating the thorny landscape threaten to keep the intrepid team from completing their 21-day survival challenge.

Two survivalists test their primitive skills on the razor sharp terrain of Andros Island in the Bahamas. Battling starvation, swarms of tiny predators and accusations about a partner's survival abilities turn this partnership into a bad marriage.

Survivalists have disagreements while facing extreme heat and crocodile-filled waters in the Cambodian jungle.

Two survivalists are challenged to survive 21 days in the Nicaraguan rainforest. Battling freezing nights, severe dehydration, and each other, can polar opposites work together to survive 21 days when one is vegetarian and the other is a meat eater?

A survival instructor teams with a pediatrician to fight storms, cold, and starvation in Argentina's Yungas Cloud Forest. It's a race against time as the pair puts their skills to the test before hypothermia shuts them down.

Two survivalists are dropped on a deserted Dominica beach. Will surviving in the barren tropical terrain be too great a challenge for the survivalists? Will they make it together, or will one have to survive in the tropical nightmare alone?

Two more survivalists try to survive 21 days without food, clean water, and their clothes in the Himalayan foothills of northern India. In the face of severe dehydration, one survivalists' debilitating illness threatens to derail both their chances of success.

Two survivalists try to survive for 21 days in the hot and swampy jungles of southern Nicaragua while armed with only a machete...and a roll of duct tape. But an early tap out leaves one of them alone in an attempt to survive for 16 days.

A Seattle banker and a Rhode Island bartender head to Africa to test their survival skills in the barren plains of Botswana. Battling intense heat and a watering hole filled with animal waste will our survivalists walk out of Africa or be carried out?

Two survivalists battle hunger and dehydration in Brazil.