Grylls crosses the Sahara desert to the North Africa coast, where he catches an octopus, fashions a shelter out of acacia trees and dines on moths and locusts.

Bear Grylls counts down his most memorable moments from Man vs. Wild.

Grylls lands in the snow-capped Caucasus Mountains of the Georgian Republic by driving a snowmobile out the back of a hovering helicopter. He ziplines across a river, camps among wolves and trudges through swampy wetlands.

Grylls is on a desert island, south of Papua New Guinea. He wades across a shark-infested tidal channel, climbs crumbling volcanic cliffs, leaps over a 100-foot death drop, and constructs a bamboo windsurfer to make his escape.

In Australia's Northern Territory, Grylls must rely on many of the skills honed by the Aboriginal people to survive in this sweltering landscape dominated by crocodiles.

In the Mojave Desert Grylls puts himself in the path of a man-made sandstorm, takes on the full force of a man-made flash flood and HALO jump from 30,000 feet. His body is pushed to the limit as the temperature soars from minus 40 to 110 degrees.

Grylls takes two fans into the Canadian wilderness for their ultimate survival challenge. They face their fears head on, trek down dangerous glaciers and across a frigid glacial river, build a rustic shelter, and try to swallow typical Grylls fare.

Meet the folks who film Bear Grylls and find out how they stay in one piece!

In Scotland off the rugged coast of Cape Wrath, Bear is dropped into open ocean. After getting ashore, he realises he's on an island and must swim to the mainland. Bear fashions a wetsuit from a seal's hide to withstand the frigid crossing. Well into the trek, he is forced to turn back as an incoming estuary tide nearly cuts him off. After he makes it to dry land, Bear has a close call with the steep treacherous Scottish rock terrain

Bear and his team are in Norway. Armed with the latest technology they'll be creating the harshest conditions possible while sensors monitor how Bear copes trying to survive in one of the world's most beautiful but wettest countries.