Twelve survivalists battle the dangerous elements of the Peruvian Amazon.
A veteran suffers a painful foot burn and two survivalists are forced out.
Steven raids a caiman nest while tensions threaten to divide the ladies.
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.
Desperate for food ahead of their Day 40 extraction, Jen pushes Trish to hunt new territory. Dan, Waz and Matt corner one of the Amazon's apex predators, a six-foot caiman. When Trish and Amber's paths cross again, tensions re-surface.
The final six survivalists come together as one group and scramble to expand their shelter. Then, the Amazon unleashes a bee swarm and a torrential storm, and a knife accident threatens a survivalist's challenge.
EJ makes poison blow darts as Matt builds a dock. Meanwhile, The tension in Amber's team increases because of Jeff.