1. Surviving Solo

Eight survivalists tackle 21 days in locations across the globe all alone.

3. The Long Trek Back

Shanika and James begin their 21-day solo challenge.

4. Bladder Parasite

No synopsis available.

5. Catfish Hunter

Cheeny stalks another giant catfish, a Fer de Lance gets the best of Kaila and Fernando battles his own doubts.

6. Edge of the Knife

A painful injury jeopardizes Shanika's challenge while Fernando's persistence brings him a huge win.

7. Making it Out Alive

Terra, Jamie, and James attempt to endure the last days of the challenge and their brutal extractions.

8. Never Quit

Hypothermic, starving and dehydrated after surviving 21 days solo, Cheeny, Kaila and Fernando brace for their difficult extractions.