Focusing on the 1925 incident in which bobsleds and bobsleds dogs worked together on the serum relay to save the lives of children in Nome, Alaska, it was called the "Great Race of Mercy". This film will be available on Disney's own streaming media and will be launched in 2019. At the end of 1924, a 2-year-old child fell ill in Nome City. The doctor diagnosed him with tonsillitis. This disease is usually not life-threatening. However, this child became an exception. Later, many children were diagnosed with tonsillitis. Several died unfortunately, and the doctor finally confirmed that the disease was diphtheria. At that time, there was a vaccine that could be used to deal with diphtheria, and then all vaccines in Nome City expired. The new vaccine could not be delivered before the port was closed. The Baltic Sea would not be thawed until June of the next year. There were no roads directly connected to Nome City, and there were no planes. The only channel for transporting goods was the postal road, but in winter only sled dogs could pass it. The Health Bureau decided to use two groups of sled dogs for relay transportation. 20 sled drivers and 150 sled dogs had to travel day and night, across rivers, across plains, through forests, and across the frozen Alaskan Post Road. The nearest vaccine location is Nanna, 1085...