Jamie and Tom are back in Jurassic dinosaur world doing a spot of prehistoric bird watching. Suddenly a large face appears among the treetops — it's a huge diplodocus! The boys enjoy watching the enormous beast chewing on the branches, but when a big twig gets lodged in its mouth, the diplodocus starts going crazy. Jamie and Tom must find their way across the treetops, swinging on vines, in order to catch up with the dinosaur and try to help him.

Jamie and Tom are off on another adventure in Dino World and with their little dinosaur friend, Wanna, they set off for Misty Mountains. They spot a group of turkey-sized dinosaurs on the mountainside — they look really cute. But when the dinos chase after a passing lizard the boys realize they're not so sweet after all. They're carnivores and they want Jamie and Tom for their next meal! As they race to get away the boys and Wanna climb further up the mountain but a sudden tremor stops them in their tracks. It's not a mountain at all — it's a volcano... and it's about to blow!

When Jamie moves to Dinosaur Cove with his father he's looking forward to doing some fossil hunting on the beach. But when he and his friend, Tom, discover a forgotten cave with fossilised dinosaur footprints, it takes them to another world... a world of dinosaurs. The boys return to the land of the dinosaurs and set off to explore around the beach and the lagoon. They spot a Quetzalcoatus, the biggest of the Pterosaurs, flying high above them and the boys decide to find its nest. Suddenly a baby Quetzalcoatus falls off the high cliff next to them, then another, then another! They're not hurt, just learning to fly. Jamie and Tom's dino friend, Wanna, goes to play with the babies, but when their mother swoops down to collect them, she takes Wanna away too! How are the boys ever going to rescue their little friend? Will he be food for the Quetzalcoatus? Or will the mother decide to push him off the top of the cliff?