Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit History series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?

Ancient Aliens: Origins takes viewers back to where it all began, revisiting the most compelling mysteries explored over the past 15 years of "Ancient Aliens." In each episode, experts like Giorgio Tsoukalos, David Childress, William Henry, and Jason Martell engage in thought-provoking conversations on topics central to the Ancient Astronaut Theory. From astonishing feats of engineering to enigmatic UFOs and sky gods, they delve deep into the series' extensive archive, reflecting on past investigations, sharing personal insights from their adventures, and offering new perspectives on the ancient enigmas that have captivated humanity for centuries.