UFO
Season 1 • Episode 10 — The Square Triangle
A secret, high-technology international agency called SHADO defends Earth from alien invaders.
Seasons & Episodes
1Identified2Exposed3The Cat With Ten Lives4Conflict5A Question of Priorities6E.S.P.7Kill Straker!8Sub-Smash9Destruction10The Square Triangle11Close Up12The Psychobombs13Survival14Mindbender15Flight Path16The Man Who Came Back17The Dalotek Affair18Timelash19Ordeal20Court Martial21Computer Affair22Confetti Check A-O.K.23The Sound of Silence24Reflections in the Water25The Responsibility Seat26The Long Sleep