Charles Dawson is trapped 100 million years in the past. Trying to survive from day to day in a world of dinosaurs he devises a plan to change his fate. As he begins to write messages in the soft mud of a nearby stream, he can only hope they will be found by someone who can stop his time travel. Professor Ron Fontana and Professor Ray Taggit, scientists with opposing views, each discover the fossilized messages. While attempting to save Charles, Professor Fontana, his daughter Lauren and their friend Danny are forced to join Taggit and his group of mercenaries. Taggit does not intend to rescue Charles Dawson, but to force Dawson to travel back in time to gather samples for Taggit's fame and fortune. As the two groups jump through time they find they must work together to make it back alive as this fast-paced thriller climaxes at the very moment the age of dinosaurs is ending. *Second Edition.