The Pirate Cats have had their plans foiled by Geronimo Stilton time and
time again, due to the help from Geronimo's friend Professor Volt. The
Pirate Cats decide to better their offs by getting rid of Professor
Volt; kidnapping him and leaving him in the Cretaceous Period - a time
when the earth was occupied by dinosaurs! Geronimo and his friends must
travel back in time 140 million years to save Professor Volt from
literally becoming a part of history!