Description: The siblings have grown up on crazy adventures like scuba diving, snow ski trips and shark tooth hunting excursions all their life. As soon as Nick and Mira, two siblings land by plane on "Kaula island" they take a walk to the beach to find some shells and stumble upon an abandoned house. Inside they find an old treasure map that leads these two on a mysterious treasure hunt involving a lost antique key and gold bars. On their journey they meet a Polynesian girl who teaches them how to ride dolphins. They find fear face to face when running into dangerous shark infested waters. They learn how to handle many dangerous troubles. When they finally make it back they find a lost unicorn that will only eat cupcakes. They want to keep it but realize they must set it free to go home to its parents.
