U.F.O

1980: After ten years of setbacks and sabotage, SHADO - Supreme Headquarters Alien Defence Organisation - is finally ready to defend the earth from alien invasion.

An XV-104 test plane wanders into a UFO target area and the pilot, Paul Foster, makes sightings of both the UFO and Sky One.

The body of an alien, recovered after a UFO attack on Moonbase, reveals some startling new evidence which overturns all SHADO's previous theories about aliens.

When an Alien Limpet UFO causes the destruction of Lunar Module 32, Straker demands a clean-up programme by the International Astrophysical Commission to remove hazardous space debris from earth's orbit.

Straker faces the toughest decision of his career when his son is critically injured in an accident.

John Croxley's talent for extra sensory perception is heightened after his wife is killed when a UFO crashes into their house.

When a lunar module is attacked by a UFO, Straker makes a split-second decision that endangers the astronauts, but ultimately saves them.

Suspecting a UFO to be responsible for the sinking of a freighter, Straker, Foster and Nina Barry investigate in Skydiver.

A Naval vessel shoots down a UFO in the Atlantic, but the Admiralty rejects further investigation into the incident.

In the woods between Clare Cross and Lingbury, an injured alien stumbles into a lonely cottage and is shot down by Liz Newton and her lover Cass Fowler.

Straker gets IAC backing to use a B142 space probe mounted with an electronic telescope to track and follow a UFO to its origin, take pictures of the alien homeland and transmit them back to Earth.

Three people are possessed by the aliens and given fantastic powers to enable them to carry out acts of sabotage against SHADO installations.

Foster proves that the sudden decompression of the Leisure Sphere, which killed astronaut Bill Grant, was caused by an alien bullet - fired by a lone alien at large on the lunar surface.

A UFO destroys itself within three miles of Moonbase and astronaut Conroy returns from the crash site with a rare moon diamond.

Straker find out that technician Paul Roper is passing computer coordinates to the aliens. Under interrogation, Roper explains that his wife is being threatened but is unable to reveal the identity of his contact.

Reported missing, presumed dead, after a UFO incident which has left SID disabled, astronaut Craig Collins turns up alive and well.

When Moonbase experiences a radio and video blackout, Foster suspects that a geo-scanner, operated by a team of surveyors at the Dalotek installation, is to blame.

Straker and Colonel Lake return to the Harlington-Straker Studios to find the SHADO personnel inexplicably frozen in time.

Tired and hung-over after an all night party, Foster takes part in a mandatory fitness programme at the SHADO Research Centre.

Classified information about a Skydiver rendezvous with a supply ship has been leaked to the press and Paul Foster is apparently the only suspect.

An astronaut is killed during a UFO alert and the UFO gets through SHADO's outer defences.

After Lt. Grey becomes a father, Straker recalls the early days of SHADO, when in 1970 the United Nations granted Straker the finance to set up his defence organisation.

While SHADO is tracking a UFO in heavy woodland, international show-jumper Russell Stone goes missing from his estate.

The freighter 'Kingston' is sunk in mid-Atlantic by "flying fish" missiles and an underwater cameraman dies in mysterious circumstances.