Harry thinks he's too old for his bucketful of dinosaurs but they have other ideas. He looked after them when he was little & now they're determined to stick by him.. .for life. & Harry is not the only one who's got a lot bigger! When a mysterious set of plastic dinosaur cards appear on his key-ring, Harry soon finds that he can call on an army of Back-Up Dinosaurs. It only takes a rub with his finger to call up some Monster-sized muscle! When Harry hears that Mr. Oakley has been robbed by a nasty crook, he hopes that he & his friends
- Jack, Charlie & Siri
- can solve the crime. & after a night-time visit from a grateful Spinosaurus, Harry discovers that he now has a whole pocketful of back-up...