Joseph Teti and Cody Lundin join forces again to take on some of the planet's most unforgiving terrain in order to stay alive. This season the challenges are bigger, the environments are more extreme and the differences between the two men couldn't be greater. Lundin and Teti will tough it out in the endless mangroves of Sri Lanka, the blazing Arabian desert in Oman, the snow-capped Norwegian mountains and more. The stakes are higher than ever before and as a twist of events unravels throughout the season, one member of Dual Survival will leave the show for good.