Stephen explores the great Jurassic forests and prairies that were home to dinosaurs, including diplodocus and allosaurus. Dr Susie Maidment helps decode these dinosaurs' remarkable behavior.

Stephen Fry examines the Early Cretaceous period, which occurred approximately 125 million years ago, and encounters the terrifying Utahraptors.

Stephen finds himself in a huge forest around 68 million years ago in the Late Cretaceous period, home to the deadly Tyrannosaurus rex and other vicious dinosaurs.

Stephen Fry heads back 66 million years to the apocalyptic end of the dinosaurs. He uncovers the secrets of this final era as he finds out how plant eaters fought back against predators like the T-Rex.