In this survival scenario, hosts Cody and Dave find themselves on a deserted island off the coast of Nova Scotia — in the dead of winter with plummeting temperatures. Despite the freezing temperatures — and his partner's objections — Cody doesn't give in on his indigenous survival strategy, where he lives his life barefoot. Here, he's only wearing shorts and wool socks. The only items they have are those they're able to salvage from the life raft they used to reach the island: an emergency Mylar blanket, a plastic tarp, two knives and a single rescue flare. They must use these items and their arsenal of skills to find shelter, build a fire and find food and water, all in sub-zero conditions.

Next, our survival experts take on a mountaineer's worst nightmare. They are left stranded on top of a mountain in New Zealand with limited supplies that would be carried by a climber: rope, crampons, an ice axe and other climbing gear. Working together, they battle 8,000-foot glacial peaks, deadly crevasses and deep rocky canyons as they trek down the mountain on a course set by Canterbury, an experienced climber. To find food, Lundin uses his knowledge of local cultures to tap the dietary wisdom of New Zealand's indigenous Maori.

Each year, an average of 20 people drown while cave diving. For this survival scenario, survival experts Cody and Dave are lost divers who are fortunate to find air, but they are deep inside a maze of caves in Belize. Equipped with only their dive gear — mask, fins, wetsuit, buoyancy compensator and flashlights — they must find their way out and to safety. The survival rules that work above ground, like following a river downstream, don't apply in the labyrinth of underground caves. Instead, they must make their way upstream in a trek that puts Cody's barefoot philosophy to the ultimate test. Once they emerge, the situation goes from bad to worse — they find themselves surrounded by dense jungle, a web of vines and thorn ravaged terrain... and snakes.

Cody and Dave head into Peru's infamous "Valley of the Volcanoes" to take on the ultimate lost-in-the-desert survival scenario — a broken down car miles from civilization, in the middle of an almost barren lava-scorched landscape. Here, Dave and Cody take on two roles to show how to survive this desolate location: Dave stays with the vehicle and signals for rescue while Cody heads out in search of water. But first, Dave and Cody strip the car for everything it's worth, salvaging the battery, headlights, electrical wiring, tires and seat cushions. They fight volcanic rock, heat exhaustion, altitude sickness,dehydration, rodents and a debilitating illness that literally brings Cody to his knees.

Dave and Cody take on a lost hiker scenario in the sweltering jungles of Laos

Survival experts Cody and Dave head to the heart of the Louisiana bayou to take on a potentially deadly scenario: lost in a 1,000 square mile labyrinth of water channels and bogs, home to 1.5 million alligators and six species of poisonous snakes.

Dave and Cody must trek through tough Arizona terrain to find each other before making their way back to civilization.

For two boat-wrecked hunters, surviving in the Pacific Northwest rainforest takes keen navigation skills and the know-how to avoid hypothermia and signal for rescue. Dave and Cody take on this nightmare scenario and show what it takes to survive.

Cody and Dave find survival resources in the trash in a hurricane's aftermath.

Code and Dave wade through piranha-infested water in Brazil's Pantanal.

Chile's Atacama desert is the driest place on Earth, and it's landscape is so barren and unique that NASA uses it as a testing ground for it's Martian rovers. It is here that Cody Lundin and Joe Teti are put to the ultimate desert survival test. In this scenario, they take on the plight of a downed paraglider pilot who has crash landed on a mountain peak over 14,000 feet above sea level. Facing acute altitude sickness, and with limited water and resources, they must strip the paraglider for all it's worth and head out in search of civilization and re-hydration.

Stranded in the South African bush and in close proximity to the planet's deadliest predators including lions and leopards, Joe and Cody fight to get out alive while hiding from poachers who may be hunting them.

Deep in New Mexico's Chihuahuan Desert, Joe struggles to get out of an abandoned mineshaft. A deadly western diamondback rattlesnake becomes dinner, and a maggot-infested cow carcass puts the team's opposing survival tactics to the test.

Isolated in the jungle of an uninhabited Hawaiian island, Joe and Cody lock heads over priorities. Cody battles the dangers of dehydration searching for water and fire-making tools, while Joe gears up for mortal combat with aggressive feral boars.

Stranded in the South African bush and in close proximity to the planet's deadliest predators including lions and leopards, Joe and Cody fight to get out alive while hiding from poachers who may be hunting them.

Tempers get hot when survival tactics collide as Joe and Cody struggle to escape the Nicaraguan jungle. The men are stranded at the top of a steep, muddy volcano, and Cody takes on the role of a hiker suffering an immobilizing knee injury.

Stranded in the middle of Zambia's hot, wild plains, Joe and Cody must avoid territorial hippos and herds of elephants to find water and shelter. An argument over whether to sleep inside a bat-infested hollow tree threatens to break the team apart.

Isolated beneath the mountains of Romania, lost in a labyrinth of underground caves, Cody and Joe fight to escape the pitch black darkness with dying headlamps. Their teamwork is further strained by their opposing survival philosophies.

Marooned on a deserted island somewhere in Fiji, Joe and Cody face unpredictable and punishing tropical storms and brave shark-infested waters. With limited resources and up against enormous odds, they'll show how to get back to civilization alive.

Stranded at over 9,000 feet above sea level in the snow-covered Rocky Mountains of Colorado, Cody and Joe battle temperatures of negative 20 degrees Fahrenheit while battling to fight off hypothermia, and stay alive long enough to get rescued.

On the season finale, Cody and Joe take on the mountains of Northern California. The damp and treacherous woodland environment proves to be the ultimate test for Cody and Joe, with drastic temperature changes and a lack of dry materials for fire-building.

Joe and Matt attempt to survive in the harsh terrain of southern Utah without knives or modern supplies.

Joe and Matt travel through the Allegheny Mountains of Pennsylvania, contending with freezing rain, steep ravines and bears.

Matt and Joe start at the site of a plane crash on an uninhabited tropical island, and face long-term survival.

While marooned on a barren island, Matt and Joe risk a swim in shark-infested waters and fight for life-sustaining basics.