Leonie Tetzner has a hobby that is quite extraordinary for Germany: dog sled racing. The 7-year-old, who lives with her parents half of the year in Germany and the other half in Alaska, competed in her first race when she was just four years of age. Now she will be competing with Germany’s best-known extreme and endurance athlete, Joey Kelly, on "Klein gegen Groß" (Small versus Big). Which of the two will move the team faster over the course in the "dog sled duel"? Find out more about Leonie Tetzner at www.leonie-tetzner.de