Μεγάλη ιστορία για τα παιδιά. In Rocketown four friends, Tom - also known as Captain Bob, Eric and John, are a strange game in the office of Professor James. The professor is Tom`s father and the famous paleontologist, who recently died in mysterious circumstances. The game brings the boys in the past, to a time when dinosaurs lived on Earth and dragons. There are many dangers awaiting them. Their weapon is a mysterious stone.