While Mr. and Mrs. Shinyshoes are away for the day, Claude, a small, plump dog, and his friend, Sir Bobblysock, share adventures in the park and at the circus.
On a trip to the park with her mother, a young girl hears a rhythm coming from the world around her and begins to move to the beat, finally beginning an impromptu dance in which other childen join her.
The Apple Park Gang decides to investigate when the members hear ghostly music coming from the park's carousel and spot some mysterious people lurking in the bushes.