One day, Barry and Pancakes want to go to the beach. When they go to grab Blue though, they discover that he's already gone. He's searching for a legendary stone buried deep underground, and didn't invite his best friends to join him! Feeling hurt, Barry and Pancakes decide that they're going to beat Blue to the treasure, but they are totally unprepared for the danger that awaits them in the cave of the Jelly Gem.