Running Wild With Bear Grylls

Actor Terry Crews joins Bear Grylls for a journey in the Icelandic highlands, where survival is the name of the game, from jagged scree mountains to freezing floodwaters.

Bear jetpacks to an adventure with Keegan-Michael Key in the lava fields of Iceland.

Bear Grylls takes champion auto racer Danica Patrick into the Moab Desert for some high-octane, pulse-pounding action in the wild.[National Geographic]

Bear takes icon and legend Danny Trejo to the canyons of Arches National Park in Utah.

Bear Grylls inspires Rainn Wilson with mountaineering training in the La Sal mountains.[National Geographic]

Bear Grylls helps actress Gina Carano face her fears in the Dolomite mountains of Italy.[National Geographic]

Gina Carano in Italy's Dolomites.

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

Bear takes radio and television personality Bobby Bones and his new fiancee, Caitlin Parker, into the rugged wilderness of the eastern Sierra Nevada.