Bear recaps survival essentials that he has used to navigate deserts, swamps, jungles and icy mountains.

Bear's latest adventure takes him to the Black Hills, the Great Plains and the Badlands of South Dakota.

Bear survives the rugged West Coast of Ireland, where he must scale 2000-foot-high sea cliffs.

Bear Grylls tests himself in the rugged terrain of West Ireland.

Bear Grylls survives the deadly swamps of the Deep South.

Bear Grylls travels to the desert of Mexico's Baja California, battling a bee sting and a deadly diamondback.

Bear meets the Tuvans, yak herders descended from Genghis Khan, who have lived in Siberia for 20,000 years.