Dr. J. Allen Hynek (Aidan Gillen), a brilliant yet underappreciated college professor, is recruited by the U.S. Air Force to spearhead a clandestine operation called Project Blue Book. Along with his partner, the debonair Air Force Captain Michael Quinn (Michael Malarkey), he is summoned to investigate UFO sightings around the country and use science to discover what really happened. However, when some encounters cannot be explained away and cases remain open, Hynek begins to suspect that he has been duped by the government into a larger conspiracy to cover up the truth.
As the Cold War deepens and the new political threats loom for Project Blue Book, Dr. Allen Hynek (Aidan Gillen) and Captain Michael Quinn (Michael Malarkey) must delve further down the UFO conspiracy rabbit hole in their dangerous quest for the truth. Soon, cover-ups from the past (including at Roswell) collide with new UFO cases in the present (including at Area 51), forcing our duo to not only question the multi-faceted layers to a broadening global conspiracy, but the very nature and origin of UFOs themselves in an increasingly unstable world.