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-Star survivalists take on an unprecedented challenge in the jungle.

Jeff and Laura explore the jungle to find more resources after a typhoon.

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

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

Jeff and Laura must secure protein, besides snails, and find water.

Sneak peeks are revealed as show veterans prepare for the next challenge.

Twelve veteran survivalists take on the badlands of Colombia.

Hunger, thirst and distrust threaten to wreak havoc on several competitors.

The survivalists struggle to adapt to the environment and each other.

The remaining survivalists trek across the scorching savanna to find food.

Scarce resources force the survivalists to seek food in uncharted waters.

The dehydrated and protein-starved competitors compete for resources.