Four children, Kiri, Jed, and twins Emma and Ethan, discover an `elastic' island that can send them pinging across the ocean to a variety of tropical island destinations. Landing at Jewel Lagoon on Trinity Island, the children quickly nd themselves in trouble. But even with help from the colourful creatures they meet - Pangali the Platypus, Olaf the Giant, and Big Wig and Wee Wig Knockulous - will they be able to return home safely?