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
Luis Elizondo
Self - Former US Intelligence Official
Karen Bellinger
Self - Anthropologist Archaeologist
Thomas Gadinger
Self - Science Journalist
Linda Rodriguez-McRobbie
Self - Journalist
Sep 27, 2023
Nov 13, 2012
Mar 27, 2012
Jan 11, 2014
Dec 28, 2025
Aug 10, 2025
Jul 24, 1994
Aug 8, 2021
Nov 14, 2020
Sep 7, 2011
Oct 4, 1988
May 4, 2020
Jun 23, 1986
Feb 11, 2009
Nov 7, 2016
Jun 1, 2016
Sky History
WAG Entertainment
GB
United Kingdom
English