Naked and Afraid 

For 21 days, one man and one woman - meeting for the first time in the nude - are paired and tasked to survive in some of the world's most extreme environments... with no food, water or clothes. This season, a whole new crop of extreme survivalists will tackle brand new international locations from Australia to Croatia and Canada, along with Alabama and Texas for the first time. They'll suffer the world's most hostile climates and encountering new and deadly animals including large cats, bears and some of the world's most deadly reptiles. They will need to surmount physical challenges to create shelter, forage for food and find water. But as the days wear on and the danger ramps up - the mental challenge can become unbearable... Will any of them be strong enough, physically and mentally, to last 21 days NAKED AND AFRAID?

Naked and Afraid XL all-stars 

TV's most extreme survival challenge just grew extra-large. Veteran survivalists familiar with the stripped-down drill after appearing on "Naked and Afraid" attempt to survive in a desolate, dangerous environment for 40 days -- 19 more than they previously experienced on the show. Pushing the very limits of human endurance, the men and women must all vie for the same limited food, water and shelter while avoiding territorial-sensitive predators and venom-filled reptiles. Because there is no other choice, the competitors quickly get to know one another -- and their surroundings -- and hope that their instincts, survival skills and intestinal fortitude serve them well.