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 try to endure 21 days in the Botswana desert. But at night, their safety is threatened by roaming lions and aggressive elephants.

For the first time, two young adult kids of veteran survivalists try to prove they are as good as their parents when they take on 21-days in a dense Mexican rainforest where they face pumas, jaguars, and deadly fer de lance snakes.

Fan survivalist Matt, notorious for his former partner sharting in their water source, teams up with environmentalist, Kerra, to take on 21-days in Zambia. Dropped in a valley teaming with leopards, will he have another environmental disaster?

A wilderness EMT and a hard-headed homesteader try to survive in a coastal Colombian jungle. But when their priorities clash, their partnership becomes volatile.

Legend survivalists Max and Rylie are dropped in the South African bush with two novice fans to try and survive 21 days with spitting cobras, aggressive warthogs, rhinos and leopards.

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?

Two survivalists try to endure 21 days in the wreckage of an abandoned village in Botswana's Okavango Delta, where aggressive hippos have claimed the territory.

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

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