Learn about the three categories of factoring Primitive Survival Rating.

Matt Wright begins his solo XL challenge and must find a food source fast.

Matt Wright and his shelter can no longer handle the beating rain.

Matt discovers a new camp, giving him hope another tribe could be close by.

Matt reads a letter from his wife that was hidden inside a knife handle.

More determined than ever, Matt tries to hunt down the other survivalists.

Matt wakes up to find his camp burning down around him.

Matt Wright prepares to begin his Africa XL challenge all alone.

All-stars Jeff Zausch and Laura Zerra, embark on a 60-Day challenge.

Jeff and Laura have a sleepless night due to painful fire ants.

Jeff and Laura get smacked with a dangerous, destructive typhoon.

Jeff and Laura explore the jungle to find more resources post-typhoon.

Jeff and Laura prepare for the difficult 12-mile journey ahead of them.

Seven people with superhuman skills take on a brutal obstacle course.

Two super fans train before attempting a full 21-day challenge.

This season will take nudity to places you'll never see coming.