While on a routine fossil-hunting expedition, the Zula Patrol turns up evidence that the villainous Deliria Delight has been travelling back in time to Earth’s prehistoric past to illegally dump her company’s toxic trash.  The Zula Patrollers must find and catch her, before her actions cause catastrophic consequences.  In the process, our heroes learn all about the formation and development of Earth, and the life forms who call it home.​