Zoom, a curious caterpillar, embarks on an exciting adventure with his new butterfly friend, Zippy, to see the fabled "big, blue ocean." Using a red wagon for transport, they travel beyond their garden, encountering new sights and sounds. At the ocean, Zippy teaches Zoom fascinating facts about sand, waves, the ocean's saltiness, and the amazing creatures living in tide pools like crabs, sea stars, and jellyfish. The story culminates in Zoom's newfound appreciation for the vastness and wonders of the world.