Authorities all over the world say UFOs are real, but what are they, and are they a threat? This series examines the best and latest evidence caught on camera.
Mark Bazeley
Self - Narrator (voice)
Guy Walters
Self - Historian
Tony McMahon
Self - Historian
Luis Elizondo
Self - Former US Intelligence Official
Karen Bellinger
Self - Anthropologist Archaeologist
Thomas Gadinger
Self - Science Journalist
Linda Rodriguez-McRobbie
Self - Journalist
History's Greatest Mysteries78%
Paranormal Witness74%
Quarterback79%
American Experience65%
American Monster74%
American Masters70%
Disney Gallery / Star Wars: The Mandalorian74%
MegaStructures75%
Snapped78%
Top Gear79%
People Magazine Investigates85%
The Hunt83%
Trials of Life83%
Antiques Roadshow65%
Superpowered: The DC Story74%
Walking with Dinosaurs81%
Nature's Great Events84%
Drain the Oceans70%
Forensic Files78%
The Food That Built America78%
