1. Croatian Castaway

Grady and Josh navigate frigid, fast-moving rapids and descend treacherous waterfalls in Croatia.

2. Mosquito Coast

Grady and Josh battle snakes, mosquitoes and dehydration in the Nicaraguan jungle.

3. Bulgarian Blizzard

Grady and Josh face punishing conditions on the slopes of Bulgaria's Rila Mountains.

4. Burning Island

Shipwrecked in the South China Sea, Grady and Josh improvise solutions for food, shelter and water.

5. Out of Air

Stranded in the Peruvian Andes, Grady and Josh battle altitude sickness and related hallucinations.

6. Snow Daze

Bo and Grady team up in Wyoming’s frigid Bighorn Mountains in the dead of a brutal winter.

7. Colombian Chaos

Grady and Bo must link up after being dropped into separate locations of a Colombian jungle.