I highly recommend the movie, The Great Alaskan Race (2019, rated PG). It is the heroic true story of a race against time during an arctic blizzard. In 1925, there was a diphtheria epidemic that made all the children of Nome, Alaska, deathly ill. The town desperately needed the anti-toxin serum to stop this epidemic. This is the story of the Serum Run.
Twenty brave mushers and 150 courageous dogs traveled 700 miles through -80 temperatures to bring the serum back to Nome to save the children. What should have taken 25 days to travel by dogsled was done in a record of 5.5 days by these heroic mushers and dogs. This proved that anything was possible with hope and courage. The Iditarod Race is done in remembrance of the 1925 Serum Run.