Dr. J. Allen Hynek is a brilliant but under appreciated college professor who is recruited by the U.S. Air Force to spearhead an operation called Project Blue Book. He is joined by his partner, Air Force Capt. Michael Quinn as they investigate UFO sightings around the country. They use science to determine what really happened to cause the sighting, and some cases cannot be explained. In those instances, Hynek believes he's being duped by the government into a larger conspiracy that covers up the truth. It is set in the Cold War and atomic era, and each case blends UFO theories with authentic historical events.