When a classically trained young conductor meets a free-spirited pianist at music school, their romance and their music have a hard time harmonizing.

Ever since gifted conductor Natsume’s wife and daughter left him five years ago, he has isolated himself from the music scene. Then one day, he decides to return to Japan for the first time in decades to conduct a small town orchestra and return to his estranged daughter, Hibiki, who loathes him and his music. Now he must try to thaw a relationship with his daughter frozen in time for five years, and learn to be a father.

A highly accomplished conductor decides to leave her life in New York behind to take up the challenge of reviving a struggling orchestra.

All aboard for the adventures of Choo Choo Bob and his wacky friends as they visit railroads and museums all over the country, sing songs with each other or with guest musicians such as Ozomatli and Haley Bonar, and visit Tinyland, the small world located on Choo Choo Bob's train layout.