The remaining survivalists join forces; when the group splinters to hunt resources, it leads to a big protein win but creates tension between Lynsey and Terra; Nathan uses a primitive cooking method to maximize the meat.
A newly-formed tribe quickly works together to stalk and kill a caiman; the pressure to trek forty miles to extraction pushes two teams to make risky migrations; a survivalist is on the brink when medics discover parasites in their digestive system.
Twelve brave souls take on their first XL challenge in the Colombian Badlands; survivalists must battle disease-carrying insects, scorching heat, six-foot caiman and stalking jaguars; they must trek 40 miles in 40 days.
The Peruvian Amazon's aggressive piranha, venomous fer de lance and even poisonous plants test 12 survivalists. XL rookies look to last 40 days while vets try to make 60 and become Legends. Four survivalists will be gone in the first four days.
Dropped into the South China Sea, 12 elite survivalists try to survive 40 days on land and sea; nearby, two all-star survivalists enter the same challenge looking to survive not just 40 days but an unprecedented 60 days.
