Episode A-08
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A tense moment[1]
Production Info
Director David Lane
Story by Alan Fennell
Screenplay by Alan Fennell
Production Code
Previous[2] Kill Straker!
Next[2] Destruction
Transmission Info
Episode 8
Airdate 11 November 1970
Previous[3] Kill Straker!
Next[3] Destruction


After an underwater UFO has attacked and sunk a freight ship in the ocean, Straker, Foster and SHADO Lieutenant Nina Barry join a submarine crew to find out what they can. However, they too are attacked by the UFO's vessel and, as a result, their submarine is grounded on a ledge. Straker has to overcome his claustrophobia in order to work out an escape plan.[3][N 1]


  1. This episode takes place in 1984


  1. Vee HD
  2. 2.0 2.1 FAQ section on UFO Series website
  3. 3.0 3.1 3.2 IMDB entry

Season 1
Identified I Exposed I The Cat with Ten Lives I Conflict I A Question of Priorities I E.S.P. I Kill Straker! I Sub-Smash I Destruction I The Square Triangle I Close Up I The Psychobombs I Survival I Mindbender I Flight Path I The Man Who Came Back I The Dalotek Affair I Timelash I Ordeal I Court Martial I Computer Affair I Confetti Check A-OK I The Sound of Silence I Reflections in the Water I The Responsibility Seat I The Long Sleep