Knives are one of the handiest tools to have in a survival situation-- Matt Graham shows us how to make one in a pinch.

Matt and Joe reflect on their favorite moments and lessons learned while surviving in Texas.

Matt will have to climb to the top of a tree in slippery conditions to scout the terrain of the Costa Rican rainforest.

Joe and Matt let us in on some of their lessons learned from surviving in the dense Bolivian jungle.

Matt and Joe's mission takes an unexpected turn when Matt takes off in pursuit of a blue morpho butterfly.

The great thing about these plants is they're beautiful, edible…and sexy!

Matt's outdone himself again with an elaborate shelter construction.

Bill and Grady reflect on their survival scenario in an extreme Chilean landscape. In their first challenge together, they were introduced to each other’s skills, personalities, and abilities to trust each other.

Joe's not a fan of raw seafood, but when you gotta eat, you gotta eat.

While going into a survival scenario, Bill is inspired by Mother Nature herself. Grady enters survival scenarios with a mindset of being ready to win.

Joe uses the remains of an abandoned snowmobile to rig up an advance signaling system that he can control from inside the shelter.

Find out the top 5 moments from Grady and Bill's Dual Survival scenario in The Amazon.

The Amazon was as dangerous as it was beautiful. Watch Bill and Grady explain how their personal survival philosophies gave them the will to persevere against the elements.

Matt comes up with a fun and practical way to move through the Wyoming snow more efficiently.

What’s the key to surviving one of the hottest climates on Earth? Grady and Bill reflect on how they adapted to surviving the ecosystem of the Zambezi River Basin.

Even though Matt and Joe don't see eye to eye, they're working together toward a common goal: surviving the snowy Wyoming mountains.