In a historic special edition of "Running Wild with Bear Grylls," Bear takes President Barack Obama on an adventure in the Alaskan wilderness. We will see the Commander in Chief as we've never seen before, as the two men traverse a dense forest and walk across a glacial outwash at Alaska's famed Exit Glacier, where they observe the remarkable effects of climate change first hand. From wild salmon and catkins tea made with melting glacial water to s'mores, Bear gives the President a true taste of Alaska. Their off-the-script chat reveals the President's thoughts on his official duties, family life at the White House, parenthood and his own faith.

Bear Grylls ventures deep into Panama's Camino de Cruces jungle with Super Bowl winning quarterback Drew Brees. Together, the two climb a bat-infested cave, descend hundreds of feet into a secluded cavern and ultimately wrestle a six-foot crocodile. Along the way, Brees shares his personal stories of triumph and tragedy and reveals the drive and focus that make him a world-class athlete.

Superhero Michael B. Jordan ("Fantastic Four") joins famed adventurer Bear Grylls for a 48 hour adventure in Wales. Jordan and Grylls begin their journey with a daring drop into the rough ocean waters off the coast and the tenacious team makes their way up the windswept coastline, through the jagged cliffs of Cwmorthin and to the top of the mountains for their exit. Forced to battle the elements, the two must contend with copious amounts of rain and wind and get creative about finding warmth for the evening and food for dinner.

James Marsden ("X-Men: Days of Future Past") joins Bear on an adventure into the heart of Rattle Snake Canyon Utah, where they helicopter on to one of the highest arches in the area. Once atop the arch, they must repel down the narrow canyons and find a way to get up the towering cliffs on the other side. Along the way, they come face to face with their dinner - a Chuck Walla lizard. As they navigate the dangerous and unpredictable terrain, Marsden shares some insight about his unconventional rise to stardom, starting with his humble beginnings in Oklahoma.

Bear takes Hollywood bad girl Michelle Rodriguez ("Furious 7") to one of the harshest desert in all of North America- The Red Deserts of Nevada- for a rigorous and scenic adventure. The two make a breathtaking free fall skydive from 10,000 but unexpected high winds push Michelle off course. They navigate down a massive peak and work together to survive as they repel and free climb up and out of the dangerous slot canyons to reach the desert floor. With water in scarce supply, they must come up with clever ways to stay hydrated in the punishing environment. Rodriguez has lived a daring life but learns that Mother Nature shows no mercy and sometimes slow and steady is a better strategy than Fast & Furious.

Funnyman Ed Helms ("Vacation") pushes himself to the limit when he joins Bear Grylls high atop the Colorado Mountains. Admittedly fearful of heights, Helms comes face to face with sheer cliffs, crumbling rock and mountain-top perches where the bottom is nowhere in sight. As Bear puts him through the paces with a cringe-worthy dinner menu, Helms manages to conquer his limitations and discover a new side of himself. He also opens up about the trials and tribulations that lead him into a career in comedy.

Bear Grylls takes Oscar-winning actress Kate Winslet on the ride of her life as they "paramotor" to the top of the Snowdonia Mountains in Wales. They will descend through jagged, rocky cliffs and ascend up deep canyons to get to their destination on the coast. They will gather trout and earth worms and must set up camp in the very windy environment to rest before their final swim in the icy ocean waves. Along the way, Kate talks humorously about her humble upbringing and also reveals the unwavering determination that has helped her achieve movie star status.

High above the Italian Alps, Emmy-nominated actor Jesse Tyler Ferguson joins Bear Grylls for a 48 hour adventure of a lifetime. As the two negotiate the Croda Dei Toni, a snowy peak referred to as the "Mountain of Thunders," they will make a 6,000 foot descent along steep sheer cliffs and sharp ridges, build a snow cave for shelter and eventually rappel a frozen waterfall to their extraction point. Along the way, Ferguson shares some personal insight about his sudden rise to fame with "Modern Family," his fight for marriage equality and the challenges he faced growing up.

Famed adventurer, writer and television host Bear Grylls is back for a second season of "Running Wild with Bear Grylls." In the premiere episode, Bear takes Oscar nominee Kate Hudson ("Glee") on an adventure she will not soon forget. Their 48 hour journey finds them in the midst of the Dolomites, one of the most treacherous mountain ranges in Italy. As they hike toward the Austrian border on snow-covered exposed rock cliffs, they make some historical discoveries and work together to survive the elements. Kate also gives Bear a peek into her unique upbringing. .