Six experts deploy CIA-developed link analysis software, special ops intelligence training and extensive research to find out if aliens have made contact with Earth.

The team identifies a pattern of non-terrestrial sounds and odd sightings centred around an earthquake. Could some earthquakes be related to UFO activity?

Link analysis patterns lead Nick and Sarah to a site where they uncover ancient evidence of human contact with aliens. Investigating Argentina's most credible military encounter, Paul and Kawa track down an eyewitness and the presence of NASA.

Doubting official reports, Paul and Kawa investigate a UFO crash site in Argentina. Plus, Sarah and Nick track a pattern of low altitude UFOs in Phoenix.

An eyewitness in Kansas reveals photographic evidence of a UFO landing site. Meanwhile, Paul and Kawa disprove an official government account of a meteor impact.

Analysis uncovers a correlation between UFO sightings and secret government sites. Paul and Kawa track UFO reports and a former CIA witness breaks his silence.