In the snake-filled Mississippi swamps, Gabrielle, a former fan survivalist takes on the full 21-day challenge. Gabrielle and Brian are faced with deadly snakes, unrelenting mosquitos, nocturnal predators and a relentless week-long thunderstorm.

A category five Hurricane blasts through the camp of Amal, an Iraqi war refugee now living in Iowa and her partner, Duke. In addition to the hurricane, the pair also endure venomous spiders, insects, and nocturnal predators in the swamps of Florida.

Instant attraction gives way to unforgiving conditions on a Nicaraguan island teeming with bull sharks and big cats. As the struggle to survive hits a low point a brutal flood threatens to wipe out the camp and all chances of survival.

Surrounded by aggressive and territorial black bears day and night, two survivalists must compete against the apex predators for resources in the Smoky Mountains of Tennessee.

One survivalist falls into a roaring fire after weeks of depleted energy due to no food. With just days to go, the pair makes a daring plan for how to survive...but will it cost them the challenge?

Stalked by aggressive leopards and unable to get fire for protection, two survivalists fight the elements and each other as they look for double redemption on a predator-filled plain in South Africa.

Terribly poisoned without food or water, in the arid and desolate, savannah region of Brazil, survivalists Gary and Karra will be tested unlike any other survivalists before them. Depleted and broken will either of them make it to Day 21?

Max and Bianca face off with aggressive caiman, boa constrictors, large spiders, and thorny mangroves in this Superfan challenge on a tropical island in Panama.

Tormented by hostile crocodiles, territorial howler monkeys and no tree canopy to protect them from the sun in this post-hurricane Nicaraguan jungle, one survivalist suffers third-degree sunburn while the other's life is threatened by a mysterious illness

A dangerous burn and clashing survival strategies plague survivalists Angela and Steven in the jungles of Panama.

Torrential downpours and brutal wind storms push two starving survivalists to their breaking points in the Honduran jungle.

In a haunted Mayan jungle, a painful injury tests the resolve of survivalists Leah and Caesar. Surviving is a struggle as they are faced with suffocating humidity, hungry predators, torrential rainfall, unrelenting insects and intoxicating fruit.

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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 both survivalists home.

A freak injury puts super-fan survivalists Maci and Justin at risk as they attempt to survive the treacherous Nicaraguan jungle for 14 days.