Andy and Jen jump into the magic old museum clock and travel 68 million years back in time for prehistoric adventures on Dino Island. The duo search for a missing baby Pachycephalosaurus called Bumper, who has become separated from his family. Jen looks for him in some nearby caves, while Andy heads to the river.
When a Quetzalcoatlus egg Jen has been watching is knocked out of its nest, Andy sets out on an epic adventure across Dino Island to retrieve and reunite it with its family before it hatches. Along the way, a pesky velociraptor steals the egg, and Andy chases after it - right into the path of a sleeping T rex, which soon wakes up!
When Jen is carried away by a weather balloon, Andy sets out on an epic adventure across Dino Island to rescue her. Along the way, they meet the mighty Alamosaurus, a gigantic dinosaur that's as long as two double-decker buses! It comes to their aid when they get trapped on an island by an ancient crocodilian, called Deinosuchus, lurking in the surrounding waters.
Andy and Jen discover a meteorite crater on Dino Island. But when a grumpy old Ankylosaurus charges through their camp, taking with it all of Andy’s clothes from the washing line, they head out on an epic adventure to save it from falling into the newly found crater. Along the way, Andy meets a velociraptor and a sleepy T. rex, whose roar he needs to record on his gizmo!
Jen is monitoring some unusual earth tremors on Dino Island and uses a seismograph to research plate tectonics. Meanwhile, Andy is hungry and desperate to head to Dino Island for a practically perfect prehistoric picnic, so Jen asks him to get some seismic readings while he is out and about. Along the way, Andy meets some peckish Pachycephalosaurus, a hungry T. rex and a pterosaur.