A 13-year-old girl and her older brother live on a farm where paleontolo-
gists search for fossils. Dinosaur expert Jack McCabe suspects there are
rare and valuable dinosaur bones in the area and he is willing to pay hand-
somely for any information. However, no-one is expecting Hump Hinton,
McCabe's greatest rival, who, seeking fame and fortune, is willing to do
just about anything to get his hands on the valuable old bones.