Air date: 2015-01-09

Runtime: 60 min

UFO sightings over nuclear facilities trigger high alert responses - are they top-secret aircraft or something from another world?

Air date: 2015-01-16

Runtime: 60 min

An investigation into triangular-shaped UFOs seen in the 1980s and 90s - they might be the best evidence of extraterrestrial crafts?

Air date: 2015-01-23

Runtime: 60 min

Anti-aircraft guns blast the skies over Los Angeles when an unknown flying object is spotted by thousands in 1942 - is it from earth or could it be extra-terrestrial?

Air date: 2015-01-30

Runtime: 60 min

Roswell is the most famous UFO story in history and a piece of debris found at the desert crash site might shed new light on what really happened in 1947.

Air date: 2015-02-13

Runtime: 60 min

True stories of fighter pilot encounters with unidentified flying objects in our skies – including pilots who were ordered to ‘shoot ‘em down’.

Air date: 2015-02-06

Runtime: 60 min

Well-documented sightings of UFOs by commercial airliner pilots may be proof of danger lurking in our skies.