Born Survivor follows British mountaineer and adventurer Bear Grylls into some of the world's most inhospitable places. Equipped with little more than the clothes on his back Bear reveals the fundamental survival skills needed to survive and get out alive as he attempts to find his way back to civilisation! Bear Grylls is back! And this explosive episode sends him deep into the Siberian wilderness, one of the coldest and harshest places on the planet. With temperatures of minus 40 degrees to deal with and very little shelter, Bear is going to need all of his survival skills and army training to get out of this one. Watch in awe as Bear creates a toboggan from a deer skin, hitches a ride by leaping on to the mighty Trans-Siberian railway, abseils from a helicopter into the immense taiga forest and swims under the ice of a frozen lake... all in the name of survival.