In a four-part dramatic series, Alien Encounters lays out a plausible hypothetical scenario for a first contact event. What would really happen if we got a message from space? How will humans react when we learn that a message from a distant technology or a spacecraft is on its way to Earth? Will humans learn from aliens, or become colonial subjects? Some of the worlds leading astrophysicists, astrobiologists, and sci-fi writers help unravel the scientific, cultural and psychological impact of this world-changing global event. This show is made in cooperation with The SETI Institute which was founded in 1984 and had renowned astrophysicist Carl Sagan as one of its Board of Trustee Members. Carls son Nick is now following in his fathers footsteps wondering, How will we meet our galactic neighbours?. The Definitive Guide to Aliens takes viewers to stunning, remote locations on Earth as well as elsewhere in the universe to investigate whether alien life exists.