Season 1 Episode
- Season 1 A Case For The Bishop
- Season 1 A Question of Miracles
- Season 1 To Catch A Spy
- Season 1 The Feathered Spies
- Season 1 Last Train To Bufflers Halt
- Season 1 Hole In One
- Season 1 Recall To Service
- Season 1 Errand Of Mercy
- Season 1 The Deadly Whisper
- Season 1 The Cure
- Season 1 School For Spies
- Season 1 May-Day,May-Day
- Season 1 More Haste, Less Speed
The Secret Service - Season 1 Episode 9 The Deadly Whisper
5.10 30 minutes Professor Soames has developed a sonic rifle, capable of projecting destructive waves of ultrasonic vibration, accurate to within a centimetre over thirty feet. But three unscrupulous saboteurs intend to use Soames' rifle to bring down an experimental aircraft, holding the Professor's daughter hostage to ensure his complicity. When Father Unwin becomes suspicious and investigates, he too is held prisoner in Soames' house.
