UFOs: The Lost Evidence

Shocking evidence reveals the development of secret Nazi weapons not long after an alleged UFO crashed in Germany's Black Forest. UFO experts investigate whether the US government co-opted this technology after WWII.

Using archival audio recordings, official transcripts and incident reports, UFO researchers investigate what really happened during incredible -- and sometimes life-threatening -- encounters between law enforcement and UFOs.

As long as there have been UFO sightings, there have been claims of alien abduction. This phenomena and the alleged alien implants sometimes left behind are examined through never-before-seen evidence and eyewitness testimony.

Humanity's rapid technological advances have completely transformed the way we live. Are these innovations the result of human effort alone, or have extraterrestrials gifted them to our planet like a nefarious Trojan horse?

Investigators reveal the secret history between US Presidents and the UFO phenomenon, from FDR's knowledge about a UFO battle over Los Angeles to JFK's alleged plan to share extraterrestrial secrets with the Russians.

UFOs have been caught on camera across America, yet the government denies the existence of extraterrestrial life. Recent news of a secret UFO program may reveal shocking evidence of what the military has known for decades.

The Royal Air Force has been encountering and even engaging UFOs on a regular basis since World War II, but the British government has continuously denied the sightings. Experts investigate why these UFO facts have been concealed.

Startling evidence suggests contact with interstellar travelers in the distant past may have influenced mankind and many of our sacred sites.

Native American myths steeped in the otherworldly go back thousands of years, but astonishing, new evidence and modern-day UFO sightings have experts rethinking these extraordinary legends and depictions.

UFO experts investigate whether the value, reverence and desire for gold is the result of extraterrestrial landings in the ancient past.