Little Worm heads out for a summer day of play, but he has a catchy tune stuck in his head. He wriggles along, determined to figure out where the mysterious song came from. When Owl asks what he is singing, Little Worm just does not know. As he travels along his path, Chipmunk, Bunny, and Fox all join the fun, adding their own special songs to the mix. Soon, the forest is filled with a joyful, dancing parade of musical friends. Amidst all the singing and playing, Little Worm almost forgets about his musical mystery entirely. This delightful and rhythmic bedtime story celebrates movement, sound, and the simple joy of sharing a song with friends before Papa Worm finally tucks him in for the night.