Two survival instructors put their skills to the test during a 21-day challenge in the Philippine jungle. Stalked by king cobras and plagued by a debilitating illness, the experts must learn new skills to endure this master class in survival.

After surviving a 14-day fan challenge, three survivalists attempt to endure 21 days in the rainy, mosquito-infested Belizean jungle. But when one is forced to leave due to a family emergency, a new survivalist arrives at the camp.