Internet sleuths are baffled when they discover what appears to be a giant QR code drawn into the Nevada desert. Did the government build this to commune with aliens? Investigating significant historic and contemporary sites from the revealing vantage points of drone, satellite, and aerial photography. With the recent declassification of military records, service women and men are coming forward for the first time to share eyewitness tales of unexplained events from the front lines - events for which no training could have prepared them. From mystifying lights to terrifying apparitions, to mechanical mysteries and more, this series launches viewers into the action in an immersive way.