Andy travels through time and lands 30 million years ago in Mongolia, where he meets the Paraceratherium - a giant mammal which is five times the size of a Rhinoceros!

Andy travels 100 million years back to prehistoric times to meet the Spinosaurus, a massive meat-eating dinosaur that is even bigger than the T rex! On his adventure, Andy rides a speedy Ouranosaurus and takes a dip in a prehistoric river.

Andy and his time travelling clock head 160 million years into the past in search of a feather belonging to a tiny prehistoric dinosaur called the Epidexipteryx. But an encounter with a hungry meat-eating dinosaur leaves Andy stranded in the tree tops.