An organization called SHADO fights off aliens who are infiltrating Earth by disguising themselves as humans.
After UFO, but, before Space: 1999, Gerry Anderson had hoped to re-boot UFO, with a new series - featuring the technical advances which had been made with such films as Star Wars, and Star ...
In the 20th century the Earth is threatened by an alien race who kidnap and kill humans and even animals and use them for their body parts. In the year 1980 S.H.A.D.O. (Supreme Headquarters...