Adorable he may be but Timmy is a little lamb with a lot to learn. He has just turned 3 (in sheep years) and being the only lamb in the flock, Timmy has been used to getting his own way. In an attempt to win over their pals, Timmy and Mittens try to outdo each other with increasingly impressive train costumes, but soon realize that it's no good being the best looking train if there aren't any passengers left to play with.