UFO - Flight Path

Seizoen: 1 - Aflevering: 15 / 16 - Eerst uitgezonden: 20 januari 1971 - Episode ID: 425916

A SHADO technician, being blackmailed for information by an unknown party, is caught by Freeman, but not before the information is passed. The technician divulges to SHADO the information he gave to the blackmailers and, after much work on the encrypted data, they discover it is part of a plan by the aliens to attack the Moonbase undetected.