In the Triassic a new group of reptiles rises to rule the world. The dinosaurs dominate our planet for over 150 million years. But when the last mass extinction strikes 66 million years ago, the dinosaurs vanish together with 75% of all species. A gigantic asteroid hits our planet resulting in an apocalypse. But is this rock from space really the killer of the dinosaurs? Scientists are using the latest scientific methods to unravel the mystery of the rise and fall of the dinosaurs.