A very special new mission awaits the secret agents of the DINO on Meteor Island: they must find Mister Flashy, a young injured velociraptor stuck at the bottom of a hole. Ready for adventure, Geronimo and the whole team will discover clearings inhabited by peaceful herbivorous dinosaurs, escape a charge of angry stegosaurus and thwart the plans of Boston Blake, an unscrupulous pirate determined to put his paw on the treasure hidden in the island.