Survival expert John Hudson creates a makeshift stove using an army helmet, sand and some hand lotion. The stove is very similar to the WWII "Benghazi boiler."

Jake Zweig dissects the highs and lows of his Icelandic adventure. Go behind the scenes with the Dudes - Terry Schappert, Jake Zweig, John Hudson and Matt Graham.

John Hudson revisits his adventures in the slot canyons of Utah. Go behind the scenes with the Dudes - Terry Schappert, Jake Zweig, John Hudson and Matt Graham.

Stranded in the mazelike slot canyons of Utah, John Hudson settles in for the night with a hot can of delicious sock tea made from his own sweat.

Matt Graham relives his Arctic Finland adventure. Go behind the scenes with Executive Producer Julie Meisner Eagle and the Dudes.

A starving Matt Graham can't find anything to hunt so he chows down on... a pine tree? In fact, the white inner core is edible and can keep a person alive in a pinch.

After creating shelter, John Hudson starts a fire with a tube of lipstick. How? Lipstick contains petroleum, which is flammable.

Walking under an overcast sky, John Hudson uses a magnetized needle to point in the direction he wants to head: south.

In this bonus scene, Green Beret Terry Schappert tests out a makeshift raft that he built on the island. Will it float?

In this bonus scene, former Navy SEAL Jake Zweig breaks his knife trying to make firewood. Fortunately, he has a couple of spares.

Matt Graham found Costa Rica to be far from a tropical paradise. Go behind the scenes with Executive Producer Julie Meisner Eagle and all the dudes to find out how things really went down.

In this bonus scene, Matt Graham and Jake Zweig square off. Is Matt better with the atlatl than Jake is with his bow and arrow?

John Hudson wakes up in the freezing cold Alaskan wilderness after a snowstorm and decides to brew a cup of tea.

John Hudson relives his harrowing adventure in Alaska during a snowstorm. Go behind the scenes with Executive Producer Julie Meisner Eagle and all the dudes to find out how things really went down.

In this bonus scene, Matt Graham takes a refreshing swim in a pond below a waterfall before he heads off into the unforgiving jungles of Costa Rica.

In this bonus scene, Jake Zweig, his giant pink teddy bear slung over his back, march through the icy Central Highlands of Iceland.

In this bonus scene, Matt Graham and the Dudes try to teach John Hudson how to shoot a bow and arrow. Is John a natural or... not so much?

How do you capture a man as sly as Jake Zweig? One way is to catch him off guard - like when he's in the middle of a skydive!

Moments before taking his makeshift raft to the sea, Jake is less than pleased to find a pair of giant crocodiles storming the beach.

Terry Schappert is in the hot seat this week. Go behind the scenes of Dude, You're Screwed and find out how this Green Beret managed to survive his ordeal.

Matt Graham found Costa Rica to be far from a tropical paradise. Go behind the scenes with Executive Producer Julie Meisner Eagle and all the dudes to find out how things really went down.

John Hudson relives his harrowing adventure in Alaska during a snowstorm. Go behind the scenes with Executive Producer Julie Meisner Eagle and all the dudes to find out how things really went down.

Matt Graham relives his Arctic Finland adventure. Go behind the scenes with Executive Producer Julie Meisner Eagle and the Dudes.

John Hudson revisits his adventures in the slot canyons of Utah. Go behind the scenes with the Dudes - Terry Schappert, Jake Zweig, John Hudson and Matt Graham.

Jake Zweig dissects the highs and lows of his Icelandic adventure. Go behind the scenes with the Dudes - Terry Schappert, Jake Zweig, John Hudson and Matt Graham.

It's the ultimate survival game: five world-class survival experts have 100 hours to make it out of the middle of nowhere...alive.

When disaster strikes at the top of the world, a rare breed of pilots puts their lives on the line. Watch Everest Rescue Sun Jan 8 on Discovery.

Just because you can fly at altitude doesn’t mean you can land. Everest rescue pilot Jason takes on the challenge of landing his helicopter on the mountain for the first time.

The Khumbu icefall is one of the most dangerous places on Earth. Watch as a group of climbers take on this treacherous stretch.

Each helicopter seen on Everest Rescue was rigged with 20 cameras. Go behind the scenes with the Everest Rescue producers and pilots to see how it’s done.

A year after the tragic earthquake on Mount Everest, Everest Rescue producer Joe French returns to basecamp to reflect on the lives that were lost and saved that day.

The Lukla airport in Nepal is the gateway to Everest and home to the most dangerous runway in the world.