Overview: Eight survivalists tackle 21 days in locations across the globe all alone.
Overview: Two new survivalists begin their 21-day solo challenge.
Overview: Shanika and James begin their 21-day solo challenge.
Overview: Cheeny stalks another giant catfish, a Fer de Lance gets the best of Kaila and Fernando battles his own doubts.
Overview: A painful injury jeopardizes Shanika's challenge while Fernando's persistence brings him a huge win.
Overview: Terra, Jamie, and James attempt to endure the last days of the challenge and their brutal extractions.
Overview: Hypothermic, starving and dehydrated after surviving 21 days solo, Cheeny, Kaila and Fernando brace for their difficult extractions.