Ancient Aliens examines 75 million years of the most credible alien evidence here on Earth, from the age of the dinosaurs, to ancient Egypt, to the skies over the western desert in the present day US.

A look ahead at the cataclysmic events that could extinguish the human race.

The series reveals how many of today's technological achievements were actually developed centuries ago. New science uncovers a lost world more like our own than suspected, and reveals how modern technology has its blueprint in the ancient world.