The search for the truth continues...

Ancient Aliens explores the controversial theory that extra-terrestrials have visited Earth for millions of years, having a profound but secretive impact on the development of the planet, human history and culture. 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? In this new collection, explore these mysteries and evidence, and sit down with legend William Shatner as he spends a feature-length episode discussing compelling theories with the Ancient Aliens team.