Dual Survival

Grady and Bill drop onto a glacial volcanic peak in the Chilean Andes, where they face strong winds, heavy snowfall and sub-freezing temperatures. Hunkering down in caves, they risk noxious gases as they struggle to make fire.

Ego and survival protocol are set on collision course as Grady and Bill struggle to spark flames in the damp Chilean rainforest. Only a successful hunt and a primitive fire can reset the clock on their survival.

Deep in the heart of the Amazon, Grady and Bill navigate through the jungle in search of a river that could lead them to salvation, though the heat and humidity may push them to their breaking point.

In the Zambezi River Basin, Grady and Bill are surrounded by Africa’s fiercest animals. It's the dry season, and every creature is competing to find sufficient water and sustenance. They'll need a fire and luck to get out alive.

Stranded in the Namib Desert of southern Africa, Grady and Bill rely on a broken down car for fire, shelter and a rescue signal. Without water, they’re forced to recycle fluids, and illness threatens to finish Grady.

Grady and Bill fight the bitter cold above the treeline in Idaho’s Sawtooth Mountains. Amidst jagged granite peaks and heavy snow, Mother nature throws up a series of roadblocks, and a rookie mistake could end their journey.

Bill and Grady take on Oregon’s rocky and arid canyon lands. The duo is tested by the desert environment, lack of resources and exposure in a place that only big horn sheep, mountain lions and bears call home.

Grady and Bill journey through uncharted territory in Cuba, which was closed to Americans for more than 55 years. Facing crocodiles and navigating tangled mangroves, they fight dehydration and struggle to get out of the water.

Bill and Grady head to remote, rocky coastal Maine, where they go through a bog and face a nor’easter as they journey toward the coast. But the cold, damp environment threatens to end this partnership in a flash.

An inside look at what it takes to shoot in the world's most challenging terrains includes never-before-seen footage of Grady and Bill, along with crew interviews and a sneak peek at the next season.