Rebecca and Murphi are playing hide-and-seek. Murphi is so difficult to find that he comes out of hiding to help Rebecca make a cardboard tube tracker dog. The Mini Monsters make paper bag monsters, and Rebecca's Grandpa calls to share his fishing frustrations. The Recycling Express brings a shoebox, inspiring a mega monster idea - a magnificent monster! And the Tiny Helpers are on hand to help make the hutch.