The story of Togo, the sled dog who led the 1925 serum run despite being considered too small and weak to lead such an intense race.The story of Togo, the sled dog who led the 1925 serum run despite being considered too small and weak to lead such an intense race.The story of Togo, the sled dog who led the 1925 serum run despite being considered too small and weak to lead such an intense race.