SHADO engages in its first battle with the enemy. Sky One cripples an alien ship which crash-lands in a lake. Straker...

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

The body of an Alien, recovered after a UFO attack on Moonbase, reveals some startling new evidence which overturns a...

When an Alien Limpet UFO causes the destruction of Lunar Module 32, Straker demands a clean-up programme by the Inter...

"Important? What can be more important than your own son's life?" Straker faces the toughest decision of his career ...

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

When a Lunar Module is attacked by a UFO, Straker makes a split-second decision that endangers the astronauts, but ul...

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

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

"Unfortunately for them, an Alien came through that door instead of her husband." In the woods between Clare Cross a...

Straker gets approval from above to build a probe with a camera that will track a UFO back to its home planet. Inexp...

A UFO imbues three young people with incredible powers. One blows up a radar station, a second steals fingerprints a...

Foster, whose radio is knocked out and his oxygen line cut, is presumed lost (but they did a crummy job, not even try...

After a UFO inexplicably destroys itself less than two miles from Moonbase, a mysterious crystal rock is recovered, a...

A SHADO Technician, who is being blackmailed for information by an unknown party, is caught by Freeman, but not befor...

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

Two of the SHADO people, dining at a fancy restaurant, begin to recall this event after one of them sees a diner who...

While picking up Lt. Lake at the airport, Straker and Lake find that time has been frozen except for them. Sawdus...

Foster is abducted by aliens from a health spa and is being taken out into space, presumably back to the alien homewo...

Foster is suspected of being a security leak, but during the trial, Straker and his colleagues discover that Foster's...

A SHADO investigation reveals that romance may be complicating Moonbase operations.

A flashback episode in which Straker recalls his marriage, followed by stormy days as he must work covertly to get SH...

A UFO hides in a lake on a country estate of a well-known equestrian, and the equestrian himself vanishes. When SHADO...

A mysterious dome is found under the sea, that at first looks like the Moon crashed into the ocean. Inside the dome,...

Freeman takes over temporarily while Straker deals with a woman apparently determined to investigate what SHADO is al...

A woman awakens from a 10-year coma and begins telling the tale about her encounter with aliens, along with her boyfr...