"It's time for the annual Race-a-thon, and Steve the horse is excited! He knows he'll win. He wins every year! And no wonder, Steve's body is built for running. He's got a big chest for deep breaths, powerful hindquarters to propel him forward and the longest legs in the forest. But when he goes to sign up, Steve finds out the rules have changed, and his confidence starts to waver. Because this year, the Race-a-thon is going to be a relay race, which...