All-stars Jeff Zausch and Laura Zerra, embark on a 60-Day challenge.

Jeff and Laura have a sleepless night due to painful fire ants.

Jeff and Laura get smacked with a dangerous, destructive typhoon.

Jeff and Laura explore the jungle to find more resources post-typhoon.

Jeff and Laura prepare for the difficult 12-mile journey ahead of them.

Grady and Josh confront the dangers of Croatia's Velebit Mountain.

Grady and Josh battle snakes, mosquitoes and dehydration in Nicaragua.

Grady and Josh face punishing conditions in Bulgaria's Rila Mountains.

Shipwrecked, Grady and Josh seek solutions for food, shelter and water.

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

Experts face Wyoming’s Bighorn Mountains in the dead of a brutal winter.

Grady and Bo are dropped into separate locations of a Colombian jungle.

Innovative survival tricks help acquire food, shelter, fire and water.

Learn about the three categories of factoring Primitive Survival Rating.

Problems arise immediately when the garage works on a 1964 GMC Truck.

Two Naked and Afraid super fans get one-on-one intensive primitive survival training with veteran survivalist, Gabrielle, before attempting a full 21-day challenge alongside all-stars Matt Wright and Gary Golding.