Based in the near future - where a super secret military organization SHADO (Supreme Headquarters Alien Defense Organization) becomes operational. Its purpose, to defend Earth from an Alien race, which has been abducting humans from all corners of the planet for decades. SHADOs cover is a London movie studio where their main headquarters are hidden deep below the surface. SHADO, run by the extremely dedicated Studio Mogul and SHADO Commander Ed Straker has a cadre of crack operatives with an arsenal of cutting edge futuristic weapons systems and hidden bases on earth and beyond. UFO is the first in a trilogy of tent-pole movies based on the 1970s cult TV show, UFO, created by Gerry Anderson.