A football coach and midwife attempt to overcome the curse of Chiapas, Mexico, a location so daunting that no survivalist has completed 21 days. But their radically different approaches to survival hurt their ability to endure.

A former Marine sniper and a Mississippi mom try to endure 21 days in a haunted Colombian swamp. But extreme humidity, insects and infection prove more difficult to endure than any legends.

A transgender Vet and a South African farmer tackle the deadly bush of Zambia where territorial elephants, baboons and crocodiles threaten their every move.

After his brother is medically tapped, a South African sibling seeks redemtion in Zambia, paired with an endurance athlete from Louisiana. But vindication proves harder than expected.

A wilderness guide and a software engineer diagnosed with Asperger's try to survive in the Botswana desert. Herds of aggressive elephants threaten their security at night, but their biggest hurdle is learning to communicate with each other.

Adult kids of veteran survivalists prove they are as good as their parents.

Shart attack fan survivalist teams up with an environmentalist military vet for a 21-day challenge in Zambia.

In coastal Colombia, an EMT and a homesteader clash over survival strategy.

Legends Max and Rylie are paired with two fans in South Africa.

Two women and two men face off in South Africa to see who can survive 21 days. Pursued by leopards, lions, and hyenas, who will tap first - the men or the women?

Survivalists try to endure 21 days in the wreckage of an abandoned village.

Two survivalists take shelter in a labyrinth of caves in Colombia.

Language barriers stand between two survivalists in the South African bush.