A remarkable chance discovery is about to reveal secrets that have laid hidden for 200 million years. A "dragon" that ruled the ocean at the time of the dinosaurs was found in the eroding cliffs on the southeast coast of England called the Jurassic Coast. It's an Ichthyosaur, a fish lizard. This fearsome predator had the very best characteristics of reptiles and mammals in one formidable package. It could regulate its own body temperature, had astonishingly acute eyesight, an impressive set of blade-like teeth, and powerful, gripping jaws to hunt and swallow its prey whole. As the forensic investigation unfolds, fossil hunter Chris Moore and his team stumble into the 200-million-year-old murder mystery of this extraordinary creature's fate.
Sir David Attenborough hosts this detective story, from the challenging on-site extraction of the fossils to the 3D reconstruction of the creature. He looks at evidence from animals across the world to try and piece together how this super predator lived and died.