Sally keeps getting found when they play Hide and Seek. Cat takes them to Tagaloo to meet a great seeker. They keep trying to catch up to the elusive Tagaloop, and along the way they find out that they can use more than their sense of sight to find things. Sally loses her special bead in the sandbox and they can't find it. Cat takes them to the Hole-Lot-of Funhouse, where they have to make their way across different floors without falling through. Along the way they discover how the size and shape of materials can be used to sort or filter different materials.