The blizzard challenge

Olly isn't enjoying activity camp. Why should he bother building a shelter or foraging for food with his teammates - he'd rather be at home in the warm and dry, where the sofa and the video games are. But then Olly gets given a compass with a mysterious fifth direction. When he follows it, he's magically transported to a high mountain range where he meets survival expert Bear Grylls. With his help, Olly must learn to survive in sub-zero temperatu...