A newly formed tribe quickly works together to stalk and kill a caiman. The pressure to trek 40 miles to extraction pushes two teams to make risky migrations. A survivalist is on the brink when medics discover parasites in their digestive system.

Far from extraction, Kaiela leads her team on a punishing trek that puts her challenge at risk. Adam and Heather's smoldering tension makes the new camp choose sides. Desperate for protein, a risky survival choice pushes Heather to her breaking point.