S01:E02 - Exposed
S01:É01 - S01:E01 - Identified
SHADO officially goes into operation and encounters its first UFO.
S01:É02 - S01:E02 - Exposed
When a civilian pilot inadvertently witnesses a SHADO operation, he is given a choice: join SHADO or die.
S01:É03 - S01:E03 - A Question of Priorities
Straker faces a terrible decision: attend to an alien defector or deliver medicine to his injured son.
S01:É04 - S01:E04 - Reflections in the Water
Straker and Foster investigate an undersea alien base.
S01:É05 - S01:E05 - The Dalotek Affair
Communications problems at Moonbase are traced to a non-SHADO mining operation.
S01:É06 - S01:E06 - Conflict
After Lunar Module 32 is destroyed, Straker campaigns to have space junk removed from Earth's orbit.
S01:É07 - S01:E07 - Confetti Check A-O.K.
A flashback episode focusing on SHADO's formation and how it caused the failure of Straker's marriage.
S01:É08 - S01:E08 - Sub-Smash
Straker must face his claustrophobia when the Skydiver submarine is damaged and unable to surface.
S01:É09 - S01:E09 - The Psychobombs
The aliens transform three humans into walking bombs.
S01:É10 - S01:E10 - Court Martial
Colonel Foster is tried and sentenced to death after a security leak is traced to him.
S01:É11 - S01:E11 - The Square Triangle
SHADO and an alien find themselves in the midst of a murderous romantic triangle.
S01:É12 - S01:E12 - Flight Path
A blackmailed SHADO operative opens the door for a possible alien attack on Moonbase.
S01:É13 - S01:E13 - Timelash
Time stands still at the film studio for everyone but Straker, Colonel Lake and a mysterious enemy.
S01:É14 - S01:E14 - Survival
Foster is stranded on the Moon, where he befriends a similarly stranded alien.
S01:É15 - S01:E15 - Computer Affair
A SHADO investigation reveals that romance may be complicating Moonbase operations.
S01:É16 - S01:E16 - Close Up
SHADO obtains what may be the first photos of the alien home world.
S01:É17 - S01:E17 - Mindbender
An alien crystal causes Lieutenant Andy Conroy, Straker and other SHADO operatives to hallucinate.
S01:É18 - S01:E18 - The Cat With Ten Lives
A SHADO interceptor pilot is placed under a hypnotic spell by an alien-influenced cat.
S01:É19 - S01:E19 - Destruction
The aliens attack a Royal Navy destroyer that is dumping containers of highly toxic nerve gas in the sea.
S01:É20 - S01:E20 - The Sound of Silence
A show jumper is abducted by the aliens.
