When Jamie and Tom spot the Compsagnathus on the mountainside they think the little creatures are cute. But they soon realize these pesky carnivores aren't as sweet as they look. Worse still, as the boys race to get away, the mountain begins to shake. It's a volcano! And it's about to blow.

When Jamie & Tom emerge in their secret dinosaur world, they realize that something's changed. The landscape is familiar but also very different from the last time they were here. When they spot a herd of Stegosauruses, they realize that they've switched from the Cretaceous to the Jurassic!

Jamie and Tom are off for another adventure in Dino World when disaster strikes! A sneaky Velociraptor runs up and grabs the Fossil Finder! The boys have to get it back - if they don't, then in the future scientists might find their computer buried with a dinosaur fossil - and that could mess up the whole of dinosaur science!

Are you ready for the best adventure ever? Jamie, Tom and Wanna are back in the Triassic, on the trail of an enormous prehistoric crocodile. It's not long until they're high in the trees looking down on two of the ferocious beasts fighting over their lunch - but disaster strikes!

"Jamie and Tom are night fishing and decide to visit their secret dinosaur world in the dark! As they emerge into the Triassic, they hear the night-time sounds of the prehistoric jungle. Together with their dino friend, Wanna, they set up a camp and settle down to tell scary ghost stories, but when some noisy Triassic frogs start up their mating call, it makes the boys jump! And just as they get back to their stories, a sharp-toothed Coelophysis runs...