Dustin "Duck" Campbell

Three elite survivalists join the challenge; Dan and Waz take on dangerous prey; Amber battles an aggressive caiman to feed her team; Steven's main source of food turns sour.

Jeff struggles to keep down food; Trish and Amber hit a breaking point; Matt, Dan and Waz cross piranha-filled waters to score a big kill; EJ and Steven's new camp is stalked by a jaguar; a survivalist leaves the group to go solo.

Twelve elite survivalists enter an unprecedented 40-day XL challenge; in the Philippines, the survivalists must survive shark-infested waters before facing a dense jungle crawling with deadly snakes and monitor lizards.

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.

Twelve survivalists enter a punishing African location where tribes in the area live by a simple principle: banish the weak; as the 40-day challenge begins, deadly crocodiles and territorial leopards circle; a survivalist is targeted for banishment.

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.