A hunter and a farmer pool their knowledge as they attempt to survive 21 days in South Africa. But when the wildlife proves too stealthy to hunt, the survivalists take a life-threatening risk for food.

In an international tribes challenge, one survivalist must cope with menstruation in the middle of the African bush.

In this all-female tribe’s challenge, two veteran survivalists return to mentor two newcomers on the perils of San José Del Guaviare, Colombia, for 21 days. But, scarce food resources and torrential tropical storms take a quick toll.

Two former addicts attempt to survive 21 days in the searing Black Hills of South Africa. On their road to recovery, they must contend with man-eating crocodiles, prowling lions and venomous snakes.

A survivalist postpones her wedding to try 21 days in the Colombian jungle.

Two die-hard fans doubt their survival skills after 10 days with no food.

Two superfan critics test their armchair survival knowledge in Colombia.

After surviving a near-fatal fall, an equestrian stunt rider attempts to endure 21 days in Colombia.

Three 14-day fan challenge survivalists return to conquer 21 days.

A professional boxer and a former cop try to survive 21 days in Africa while threatened by a herd of aggressive hippos.

Crippled by injuries and toxic frogs, an adrenaline junkie and a self-proclaimed renaissance redneck must dig deep to try to endure 21 days in Colombia.

A former member of the Amish and an Australian fitness coach attempt to survive 21 days together in the harsh Colombian jungle.