Naked and Afraid — Season 4

Season 4 ran from April through July 2015 across eleven episodes. The season premiere "Alligator Alley" opened in Florida's Everglades, followed by three consecutive Mexico challenges, Guyana, India, Thailand's "Lord of the Rats," Colombia, and Nicaragua. Filming crossed both hemispheres and included the show's first U.S.-set episode.

Twenty-two new survivalists joined the roster, including Charlie Frattini, Debbie Harris, Trenton Harper, Ryan Holt, and Steve Hansen. The Guyana arc, running across "Edge of Madness," "Redemption Road," and "Surthrive," was an early experiment with multi-episode continuous filming that would eventually inform the launch of Naked and Afraid XL. "Fire on the Mountain" in India and the Nicaraguan finale "Easier Said Than Done" closed one of the geographically busiest seasons to date.