Nick and Sally are playing when their ball gets caught up high in the branches of a tree. Oh, how they wish they were tall! Being tall is something the Cat's friend Treetop Tom knows all about. They meet the giraffe in the So Sunny Savannah, and with the help of the Cat's "tallerizers," Nick and Sally get as tall as Tom! Back home, the Cat uses stilts to get their ball out of the tree.