In January 1925, the community of Nome, Alaska, was overcome by an outbreak of diphtheria, a deadly disease that affected mostly children. If that weren’t enough, a blinding snowstorm prevented all travel to and from the rural town. Who would deliver the serum cure? Nome’s only hope rested on sled dogs. An expedition was quickly organized: The dogs would travel in teams in a relay covering 674 miles to deliver the serum. One of those teams, led by musher Leonhard Seppala, had Togo at the helm. It was Togo leading the pack that traveled the longest and most dangerous part of the expedition.