From PBS KIDS - Stuck in a traffic jam, Helen's dad tells the story of the day Jake was born, and how Martha was able to drum up an inventive means of transportation to get mom to the hospital on time. Truman tells Martha the story of Balto, the heroic Alaskan sled dog. Now Martha wants to become a sled dog, too! Weaselgraft and Pablum overhear her desire to mush. Will Malto deliver herself right into their hands?