Stingray Season 1 Episode 38 Marineville Traitor

Just as an aircraft begins its approach towards a new airfield, the light from a disused lighthouse comes on, confusing the pilot and causing him to crash. The ex-lighthouse keeper returns to investigate, only to be captured by members of an alien race who are using the building's power to provide energy for their city. Troy and Phones set off in Stingray to investigate.