These special compilation episodes of "Ancient Aliens" explore the controversial theory that extraterrestrials have visited Earth for thousands of years.
Ancient Aliens70%
Prehistoric Planet82%
Top Gear79%
Planet Earth III85%
One Strange Rock77%
Natural World74%
Life on Our Planet80%
History's Greatest Mysteries78%
How Do They Do It?76%
Seven Worlds, One Planet85%
Biography67%
Marvel Studios Legends73%
Grand Designs71%
Through the Wormhole76%
Earth at Night in Colour81%
The Secret Life of Our Pets74%
Superpowered: The DC Story74%
American Experience65%
Behind the Attraction73%
Nature79%
