Swarming wasps, deadly anacondas, poisonous toads and venomous stingrays surround the survivalists in sun-scorched Brazil. Just days into their challenge, a standoff with a poisonous Fer-de-lance snake threatens to send them both home.
The need for shelter trumps everything when faced with Guyana's scorching savanna and its oppressive heat and relentless insect attacks. Severe deyhdration forces one desperate superfan to risk illness by drinking unsanitary fluids.
A solo mountain climber joins a nature-loving mother of three to brave a vast cave system as they try to avoid the dangers of a rushing river. Daily rainstorms, venomous snakes, deadly piranhas and biting insects test the duo as they struggle to survive.
Two survivalists cope with torrential downpours and brutal windstorms as they try to survive in the Honduran jungle for 21 days.
Extreme temperature changes, territorial pumas and venomous snakes threaten the survival of an army reservist and an EMT fighting for survival high in the snowcapped mountains of Colombia.
A pride of lions tracks a biker chick and a taxidermist as they push across 21 miles of savanna in search of food and water.
A survivalist with dwarfism tries to prove himself in the Amazon, but struggles against both predators and his partner.
When all-star survivalists take on a Mexican jungle rumored to be haunted by Mayan spirits, the torrential downpours and eerie noises threaten to undo them.