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

Season 21 · Episode 5 ·
The Top Ten Secret Projects
Ancient Aliens is counting down ten of history's most compelling and covert projects that study the UFO phenomenon. From clandestine government organizations to agents that silence UFO witnesses and secret programs to reverse-engineer alien technology. Are these mysterious projects evidence of contact with extraterrestrials?
17 episodes
No episodes match your search.
The cast behind this title
Titles you might also enjoy
About
Episode 5 of season 21 of Ancient Aliens: “The Top Ten Secret Projects”. Aired 2025-03-07. Watch it online free on ZapFlix.