Actor Anthony Mackie joins Bear Grylls for a journey in the Italian Dolomites mountain range.

Actress Brie Larson accompanies Bear Grylls on a jungle adventure across a remote island in the Gulf of Panama. They begin their journey by jumping out of a helicopter into the ocean. From there, they make a perilous trek through a crocodile-filled mangrove swamp that turns into a dangerous maze as the tide rises.

Bear takes Bobby Bones back into the wild with his new fiancee, Caitlin Parker.

Bear takes actress Courteney Cox on a harrowing and emotional trek through the Irish Highlands.

Olympic gold medalist Lindsey Vonn joins Bear on a harrowing journey along the Corsican coastline.

On-air radio personality Bobby Bones joins Bear Grylls for the adventure of a lifetime in a massive Norwegian Fjord! A helicopter ride into the mountains is where their journey begins, but from there, danger lurks at every turn – from giant rock domes and deadly bogs to raging rivers with currents strong enough to move cars. On top of that, the only way to reach their extraction is to rappel down a 300-foot waterfall.

Bear and President Obama venture into the wilds of Alaska, sharing stories and conversing on everything from fatherhood to climate change.

Orange Is the New Black actress Uzo Aduba joins Bear for a heart-stopping adventure in Spain's remote Pyrenees mountains, where steep cliffs, deadly predators and punishing weather test Uzo's mental and physical resolve on a truly wild adventure.

The often clever, always snarky actor and comedian Joel McHale joins Bear Grylls in the Arizona desert for an adventure unlike any other. They set out to traverse a massive slot canyon in hopes of surviving the wild, but first they have to survive one another! Huge cliffs, nasty food and unorthodox survival strategies abound in this hilarious misadventure

Bear Grylls takes champion racer Danica Patrick out into the Moab desert for some high-octane, pulse-pounding action in the wild. Together they face off against venomous creatures, sheer cliffs and scorching heat as they make their way across some of the harshest terrain around. Still, nothing is more intimidating than the final challenge that leaves even Danica Patrick unnerved.

Bear Grylls inspires Rainn Wilson to work for it by having him search for hidden caches in the aspen forest and alpine terrain of the La Sal mountains in a time-tested method of mountaineering training. Bear pushes Rainn to the limits of his endurance with dangerous rappels and dizzying climbs, but it's not until they fish for food that things take a revealing turn in what is definitely the most naked RUNNING WILD in the history of the show!

As if right out of a science fiction movie, Bear Grylls swoops in on a jetpack to pick up funnyman Keegan-Michael Key, kicking off their adrenaline-pumping adventure in the lava fields of Iceland. The "Key & Peele" star must put all jokes aside to face some of his greatest fears and conquer the lunar landscape. From a perilous rappel off a sheer 200-foot cliff to an endurance-testing jumar climb, Keegan-Michael is pushed beyond mental and physical limits in a truly life-changing experience.

America's Got Talent judge and pop icon Mel B roughs it with Bear on the shark-infested waters of the Irish coast.

Super Bowl champion Marshawn Lynch puts his survival skills to the test on a two-day adventure with Bear in Corsica.

In honor of Red Nose Day, Oscar-winning actress Julia Roberts accompanies Bear on a two-day wilderness trek to deliver lifesaving vaccines to a remote Kenyan village.

Bear Grylls and actor Zachary Quinto race the clock to traverse a dense Panamanian jungle before an impending storm makes landfall. Their adventure begins with a helicopter ride, but once dropped off deep in the brush, they must rely on a primitive navigation technique to help them reach their extraction point, and it won’t be easy! From massive cliffs and steep ravines to an underground river cave and an old crashed plane, there are obstacles at every turn.

MSNBC anchor and reporter Tamron Hall steps outside her comfort zone to explore the beautiful but brutal desert of southern Utah with the legendary Bear Grylls.

Modern Family star Jesse Tyler Ferguson joins Bear Grylls on a snowy survival trek across Europe's jagged South Tyrol.

Comedic actor Rob Riggle joins Bear Grylls on an adventure on Iceland’s Vatnajokull Glacier. Their journey begins with a helicopter ride over “the land of fire and ice,” aptly named for constant volcanic activity beneath the surface. Once dropped off, Bear and Rob must navigate a stretch of jagged ice fields, deep moulins and deep crevasses. Without food or supplies to make shelter, their mission is to find an airdropped emergency cache.

Bear Grylls takes former WWE world champion and action star Dave Bautista on a super-sized adventure in the Arizona desert. Navigating through perilous canyon descents, brutal falls and the raging Colorado River is no easy task. With Bear as his tag-team partner, Dave is up for the challenge to see if he still has that fight inside, but Mother Nature could prove to be his toughest opponent yet in this match of a lifetime.

Actor Don Cheadle tackles the unrelenting White Mountains of New England as Bear pushes him to leap outside his comfort zone across rugged and remote terrain teeming with dangerous animals - including the threat of a wild bear!

Dancer and actor Derek Hough joins Bear for a dizzying adventure through Bulgaria's Rila Mountains, where they take on towering peaks and freezing waters and even learn a few dance moves.

Actress, supermodel and social-media influencer Cara Delevingne realizes a long-held dream of accompanying Bear Grylls on an adventure. Sweeping Cara off her scooter and onto a helicopter, Bear leads Cara up the mountains of Sardinia. At nearly a mile high in elevation, Bear shows Cara how to brave several heart-stopping obstacles including pulling herself across a horizontal line suspended 200 feet in the air and rappelling down a dangerous waterfall.

Comic and actor Tom Arnold heads into the wilds of coastal Oregon with Bear Grylls for an ultimate lesson in survival.

"Brooklyn Nine-Nine" star Terry Crews joins Bear Grylls on an epic journey across Iceland's treacherous terrain. Their adventure begins with a heli-ski ride into the mountains, where they must descend a volcanic scree slope without setting off a deadly rock avalanche. Survival is the name of the game for this NFL linebacker turned actor—from trying to cross freezing, violent floodwaters without drowning to finding warm shelter to avoid hypothermia—but nothing can prepare Terry for being tossed out of a plane at 12,000 feet!