Ancient Aliens: Season 17, Episode 3 - ProjectFreeTV

17 - 3: Top Ten Alien Cover-Ups

Ancient Aliens is counting down the world's top ten alien cover-ups, from the famous Roswell Incident to a secret military base rumored to be housing ET technology to recently released UFO videos captured by cameras on Navy fighter jets. Has there been a massive cover-up regarding the truth about an extraterrestrial presence on Earth?