Some dried-up foam on a stick. Is it real? Where did it come from? Morgan and her summer-friends, Chase, Jason and Holly, examine the mysterious object found in the garden. Together they work on research and hunt for clues. While cleaning out the garden shed to create their own lab, they find an important treasure. A collection of clues helps them discover facts in unraveling the mystery of what's inside this strange-looking thing attached to a stick!