Poisonous snakes are encountered in a Georgia swamp.
Grady and Josh trek around Velebit Mountain in Croatia where they face treacherous water features including white water rapids and waterfalls.
Two survival experts share tips for weathering wild locales.
Grady and Josh travel through jungles of Nicaragua where they use a soil-testing kit to start a fire before hunting caiman at night.
The guys work their way through the mangroves of Cuba fending off crocodiles and looking for fresh water sources.
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