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.

Teti and Lundin are in a mangrove swamp in Sri Lanka.

Teti and Lundin are in the jungle of Sri Lanka.

Teti and Lundin are in the desert and mountains of Oman.

Teti and Lundin are in Norway. This is their final episode together.

The episode features footage from previous episodes, behind the scenes materials, and crew interviews.

Teti and Matt Graham in their first episode together in Panama

Teti and Graham are in Mayan underground tunnels.

Teti and Graham are 15,000 feet above sea level on a mountain ridgeline.

Teti and Graham are stranded deep in the jungle of Vietnam.

Teti and Graham are lost in New Zealand’s Fiordland

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.

While stranded in a black water swamp in southern Georgia, Joe and Matt find themselves in alligator territory.

While on a tropical volcano, Matt and Joe must navigate toward the coast through rainforest, steep-walled gorges and waterfalls.

Joe and Matt cross a volcanic island covered with jungle and water-filled canyons, where setbacks fuel a rift.

Off the beaten path and waterlogged in the rainforest of Costa Rica, Matt and Joe battle torrential rains, deadly insects, and raging rapids. After missing a shot at rescue, they combine survival ingenuity with indigenous skills to get out alive.

Matt and Joe are marooned on a rocky coast in the Pacific Northwest. They must decide whether to hunker down or travel deeper into one of the darkest, wettest forest in the United States.

In the snowiest part of Wyoming, Matt and Joe demonstrate how to repurpose a broken down snowmobile, make shelter from snow, and survive sub-freezing temperatures in whiteout conditions that cause them to miss a chance at rescue

Conclusion. The guys find a use for a broken snowmobile and make a shelter in the snow as they try not to freeze before they are rescued in Wyoming.

Joe endures the rocky terrain, dense forest and animal threats in the Himalayas, while Matt searches for spiritual enlightenment.

Stranded in the vast scrubland of Namibia, Joe and Matt are in a race to get out alive from one of the driest countries on earth. They run into trouble with a troop of baboons, proving that Mother Nature isn’t the only force in the wilderness.

Somewhere in the Atlantic Ocean, Matt and Joe are caught in open water, where a nightmare scenario of a sunken ship is made worse by prowling sharks, razor sharp coral, unpredictable weather and false hope for rescue.

Matt and Joe take on one of the most common and deadly scenarios in the wilderness: an injury that requires medical intervention. Caught in a thick jungle, this worst-case becomes a test of will in the struggle to get out alive.

Joe and Matt take on an escape and evasion scenario on the border between Texas and Mexico. Here they confront the dangers of the wilderness without their knives, including being restrained with zip-ties, traveling solo and evading pursuit.

Joe & Matt face a journey of epic proportions in the Bolivian Andes. From the world’s largest salt flat 12,000 ft above sea level, through a desert with toxic water and into mountain peaks, they’re in a constant battle against dehydration & altitude.