Identified With SHADO on the verge of becoming fully operational, the aliens target a flight carrying equipment and personnel vital to the organization's mission. Episode Transcription
Computer Affair When an astronaut is killed during an interception of a UFO, human error is suspected.
Flight Path A SHADO technician leaks information that may enable the aliens to attack Moonbase when it is most vulnerable. Episode Transcription
Exposed When an experimental plane is destroyed during an air battle between Sky-One and a UFO, the survivor threatens to blow SHADO's cover. Episode Transcription
Survival A deadly 'accident' on Moonbase is traced to a lone alien on the lunar surface.
Conflict Straker demands the cleanup of space debris following a suspicious accident that destroyed a SHADO ship.
The Dalotek Affair A mining operation on the Moon is suspected of inadvertently interfering with SHADO's communications.
A Question of Priorities Straker orders a SHADO transport to carry desperately needed medication for his critically injured son - but the plane is diverted when an alien makes contact with SHADO.
Ordeal Paul Foster is abducted from a SHADO facility.
The Psychobombs Aliens take control of three humans, sending them on a murderous campaign of destruction.
Reflections in the Water Strange goings-on in the Atlantic may be connected with the aliens' next attack plan.
Timelash After an apparently failed UFO attack on them, Straker and Lake discover that SHADO Headquarters is frozen in time. Episode Transcription
Mindbender A UFO self-destructs on the Lunar surface. Then SHADO is struck by an epidemic of hallucinations and insanity. Episode Transcription
The Long Sleep A woman awakes from a ten-year coma, reopening a long dormant UFO case.
Note: the above list is in the order the episodes appear on the A&E DVD set. UFO had no set episode order except that Identified, being the pilot, should be first and Exposed should obviously come before any other episode with Paul Foster in it.