Jeff is called out for his "no hand-outs" survival strategy but refuses to back down. Through a free-wheeling discussion, new interviews, and never-before-seen footage, it's a new look into how the survivalists survived land, sea and each other.

With the day 60 extraction looming, a hunt goes awry and leads to an all-out jungle search for wounded prey; the team's large-scale raft build could be a crushing waste of time and calories; a survivalist decides this will be their last challenge.

The 10 remaining survivalists cross the 21-Day milestone and enter into unchartered waters. Scarce resources send the survivalists on a collision course. They fight for their lives with a huge electric eel and are visited in the night by a gigantic puma.

In a 24-hour period, the contaminated fruit of a single tree sets off a shocking chain of events. As panic and illness spread through the group it's questionable whether anyone will make it to Day 40.

To cross the gator-filled swamp, Rylie, Matt and Ryan engineer an epic 50-foot bridge in a desperate attempt for resources. Harassed by a black bear, Jeff and Steven must abandon their camp. EJ stalks a gator who has been stealing his fish.

After nearly three weeks in the bush, two survivalists have tapped out and most others are making desperate treks across the savannah in search of food. If they can't find sustenance, they'll be forced out of the most difficult challenge of their lives.

After a week of being dropped into the dangerous and desolate badlands of Colombia with no food or water, one survivalist has already tapped out, another is on the brink, and hunger, thirst, and distrust are threatening to take down several more.

One survivalist takes a huge risk and enters a leopard kill zone to secure a big kill for his team. A massive storm unleashes torrential rains on each camp and the temperature plummets nearly 40 degrees.

A devastating injury and a vicious storm that destroys the survivalists' food supply threatens to tear apart the newly merged camp.

In an epic two-hour event, the weak, divided group gets a much-needed victory when the hunters score a kill. To finish the challenge, the survivalists must complete a brutal extraction across deadly killing fields of lions, crocodiles and leopards.

The group is devastated when two critical survivalists leave the challenge; with just 10 days left before extraction, Jeff is forced to change his survival strategy, but a medical emergency puts him on the verge of a tap out.

Season finale. Medics closely monitor Jeff's high fever and prepare his evacuation. The others scramble for a 5-mile extraction journey through shark-infested waters. A survivalist pushes too hard leading to a medical emergency on the open sea.

After fourteen days, many who remain are struggling to adapt to their environment and each other. Some consider migrating to try and find new resources, while in other camps tension continues to rise and may lead to our second tap out of the season.

Stalked by lions, hyenas and aggressive crocodiles, 13 all-star survivalists try to survive for 40 days in Africa's sun-scorched Selati Basin. Resources are scarce and when one group scavenges meat, hungry predators stalk their camp.

One camp throws themselves into the lion's den to hunt for big game, while the other camp bands together for a group hunt and ends up finding a dangerous and unexpected food source.

12 elite survivalists are dropped into the brutal South China Sea where they must survive 40 days on land and sea. Plus, 2 All-Star survivalists enter the same challenge looking to survive not just 40 but an unprecedented 60 days.

Far from extraction, Kaiela leads her team on a punishing trek that puts her challenge at risk.

As deadly predators begin to close in on the remaining survivalists, they must find the energy to secure food and start their long journey to extraction.

All 12 survivalists return to bring viewers behind-the-scenes of their epic 40-day challenge in South Africa

12 of Naked and Afraid's best battle their biggest challenge yet - 60 days in Louisiana's punishing swamps.

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With a huge 8-foot alligator win, Gary eats parts that are too much for his team and his stomach.

An eye-popping, reckless move puts a survivalist's challenge at risk.

Two survivalists confront sub-freezing temperatures in the swamp.

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