Eight battle-tested survivalists attempt to tackle 21 days in locations across the globe without a partner, but with no one to lean on for help, their success depends solely on their own abilities and will to survive.
Two new survivalists begin their 21-day solo challenge; Terra makes a risky decision to leave their fire starter behind; Jamie tries to overcome his disappointment in Peru.
Shanika and James begin their 21-day solo challenge; ravaged by insects, Terra considers hiking back for the fire starter.
Cheeny stalks another giant catfish, a Fer de Lance gets the best of Kaila and Fernando battles his own doubts.
A painful injury jeopardizes Shanika's challenge while Fernando's persistence brings him a huge win.
Terra, Jamie and James try to endure the final days of the challenge and their brutal extractions.
Hypothermic, starving and dehydrated after surviving 21 days solo, Cheeny, Kaila and Fernando brace for their difficult extractions.
