Did you know that alleged UFO sightings are as numerous in the UK as in the USA? This programme looks at three such cases from 1979 to the present day, including the only alien abduction actually investigated by the police, an incident regarded by many as the British Roswell, and claims that scientists at the European Space Agency are spending billions on making actual physical contact with extraterrestrials aboard a spacecraft with whom they have been communicating for the past 20 years.