The battle with isolation takes a mental toll on one competitor, who struggles to control their emotions and homesickness, while another regards the experience as paradise - until an unexpected problem jeopardises their place in the competition. A wild storm upends trees and puts everyone in danger, and one competitor's terror doesn't stop there, as a predator targets them after dark.

The ultimate test of survival reaches its climax for the final competitors. One contestant gets a surprising boost to their chances of winning but finds the long-term separation from family increasingly hard to bear. Another's fishing failures cause an unexpected injury, leaving them physically vulnerable. Plus, six months later, we revisit some of the competitors to find out how living alone in the wilderness changed their lives.