The Serum Run: Togo Saves the Day


This episode of Dog Works Radio covers the 1925 Serum Run, a dog sled relay to deliver diphtheria antitoxin to Nome, Alaska. The episode highlights the preparations for the relay, the journeys of mushers Leonard Sepal and Charlie Olsen, and the heroism of lead dogs Togo and Balto. The relay faces extreme weather conditions, including freezing temperatures and a fierce storm. Despite challenges, the antitoxin eventually reaches Nome, saving many lives. The episode ends with a preview of the next week’s episode.


  • The 1925 Serum Run was a dog sled relay to deliver diphtheria antitoxin to Nome, Alaska.
  • Mushers Leonard Sepal and Charlie Olsen played crucial roles in the relay.
  • Lead dogs Togo and Balto demonstrated exceptional bravery and leadership.
  • The relay faced extreme weather conditions and challenges, but ultimately succeeded in delivering the antitoxin to Nome.


00:00: Introduction and Sponsorship
00:44: Background on the 1925 Serum Run
02:03: Preparations for the Relay
03:07: Seppala’s Journey and Togo’s Heroism
04:31: Olsen’s Journey and Frostbite
07:25: Seppala’s Arrival in Gullivan
08:16: Concerns in Nome
09:00: Decision to Pause the Relay
10:12: Kasson’s Decision to Continue
12:07: Olsen’s Arrival in Bluff
13:59: Kasson’s Journey and Balto’s Leadership
16:16: Next Week’s Episode
16:24: Promotions and Closing