Some of Bill and Corky's friends are in trouble. The Junkosaurs are running out of junk and might have to leave Junkosaur Island. Meanwhile, Molly the mermaid's undersea world is having so much junk dumped on it that she might have to leave her home too. / Bill and Corky have promised to help both Dandy the fairy and Mrs Whistlehead. But how can they be in two different places at the same time?