Season 1 Episode
- Season 1 Identified
- Season 1 Exposed
- Season 1 The Cat With Ten Lives
- Season 1 Conflict
- Season 1 A Question of Priorities
- Season 1 E.S.P.
- Season 1 Kill Straker!
- Season 1 Sub-Smash
- Season 1 Destruction
- Season 1 The Square Triangle
- Season 1 Close Up
- Season 1 The Psychobombs
- Season 1 Survival
- Season 1 Mindbender
- Season 1 Flight Path
- Season 1 The Man Who Came Back
- Season 1 The Dalotek Affair
- Season 1 Timelash
- Season 1 Ordeal
- Season 1 Court Martial
- Season 1 Computer Affair
- Season 1 Confetti Check A-O.K.
- Season 1 The Sound of Silence
- Season 1 Reflections in the Water
- Season 1 The Responsibility Seat
- Season 1 The Long Sleep
UFO - Season 1 Episode 10 The Square Triangle
7.60 48 minutes "Unfortunately for them, an Alien came through that door instead of her husband." 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. Liz and Cass are taken to SHADO HQ for questioning, but when Liz's husband arrives at the cottage, Paul Foster realises that the Alien's death was no accident!
