Homebuilder and jack-of-all-trades Johnny Littlefield is flipping the standard survival trek on its head with a 50-mile hike through the most densely populated state in America: New Jersey.

Johnny, Dick, and Dave head to central Nevada to conquer the most daunting desert stretch of the Old Pony Express route, and to make their epic trek even more challenging, they're doing it on bicycles they cobble together themselves.

Dick is bringing the guys to an island buried deep into Florida's Ten Thousand Islands, part of the largest expanse of mangrove forests in North America.