The five friends just want to enjoy their vacation together. But on the very first night, Dick sees a strange light descending on the rocky island. When they search the island the next day, they discover a burned bush and a peculiar piece of metal. Then Timmy catches a scent between the cliffs by the sea. However, the five friends can't find anything. At least not yet - because a secret is hidden among the rugged rocks. And they are not the only ones after it.