Adam, Jen, Kareem, and Zac canoe across a swamp to an abandoned beaver lodge. Catarina returns to the show. Forced to abandon their canoes and with limited supplies (including plastic garbage bags, a magnesium fire-starter, and a teakettle), the five must swim and walk across the swamp to a marshy area, build a shelter on the water, find food and water, and spend the night on the water.