The Secret Service is a British children's espionage television series, made by Century 21 for ITC Entertainment and broadcast on Associated Television, Granada Television & Southern Television in 1969. Created by Gerry and Sylvia Anderson, and produced by David Lane and Reg Hill, it was the eighth and last Century 21 production to feature – in a manner similar to Thunderbirds and other earlier series – marionette puppet characters as part of a filming technique known as "Supermarionation". Under the direction of Gerry Anderson, who wanted to compensate for the inadequacies of Supermarionation and increase the realism of the format, The Secret Service incorporates footage of live actors for long-distance shots. After The Secret Service, Anderson would not work with puppets again until the 1980s, when he produced Terrahawks in "Supermacromation". Episodes of The Secret Service follow the adventures of Father Stanley Unwin, a character voiced by and resembling the real-life comedian of the same name. Outwardly the parish priest of a rural English village, Unwin is in fact a secret agent for BISHOP, a covert branch of British Intelligence that combats criminal and terrorist threats from overseas. Aided by junior operative Matthew Harding, the Father answers to his London-based superior – codenamed "The Bishop" – as he would in his public profession. When faced with the challenge of collecting intelligence in a hostile situation, Unwin and Matthew deploy the "Minimiser", a gadget capable of shrinking Matthew to a fraction of his normal size for the purposes of carrying out secret reconnaissance. A nonsensical gobbledegook of Unwin's formulation is used to confuse and distract enemies when required.
The Secret Service (Mùa 1)

A Case for the Bishop (Tập 1)
Biên kịch: Sylvia Anderson
Ngày phát sóng: 1969-09-21
Thời lượng: 30 min
Tổng quan: Unwin and Matthew are put on the case when the Ambassador of Dreisenberg attempts to smuggle a stolen mini-computer out of the country.
A Question of Miracles (Tập 2)
Biên kịch: Donald James
Ngày phát sóng: 1969-09-28
Thời lượng: 30 min
Tổng quan: Unwin and Matthew are sent to investigate the sabotage of several desalination plants with the help of Agent Blake.

To Catch a Spy (Tập 3)
Biên kịch: Pat Dunlop
Ngày phát sóng: 1969-10-05
Thời lượng: 30 min
Tổng quan: Unwin and Matthew are on the case when enemy spy George Grey escapes from a maximum security prison and disappears over the estate of Sir Humphrey Barton.

The Feathered Spies (Tập 4)
Biên kịch: Tony Barwick
Ngày phát sóng: 1969-10-12
Thời lượng: 30 min
Tổng quan: Unwin and Matthew are sent to plug a security leak for a top-secret project.

Last Train to Bufflers Halt (Tập 5)
Biên kịch: Tony Barwick
Ngày phát sóng: 1969-10-19
Thời lượng: 30 min
Tổng quan: Unwin is assigned to accompany a bullion train after an attempted robbery.

Hole in One (Tập 6)
Biên kịch: Shane Rimmer
Ngày phát sóng: 1969-10-26
Thời lượng: 30 min
Tổng quan: Unwin and Matthew are puzzled when they're assigned to investigate a security leak regarding an early warning satellite.

Recall to Service (Tập 7)
Biên kịch: Pat Dunlop
Ngày phát sóng: 1969-11-02
Thời lượng: 30 min
Tổng quan: Unwin must pose as an army officer in order to prevent the sabotage of an experimental new tank.

Errand of Mercy (Tập 8)
Biên kịch: Tony Barwick
Ngày phát sóng: 1969-11-09
Thời lượng: 30 min
Tổng quan: When Unwin takes to bed from sunstroke, he has an extraordinary dream. Can he and Matthew survive their dangerous journey in Gabriel, the flying car, and deliver medical supplies to plague-ridden Africa?

The Deadly Whisper (Tập 9)
Biên kịch: Donald James
Ngày phát sóng: 1969-11-16
Thời lượng: 30 min
Tổng quan: Unwin encounters trouble in his parish when a local scientist is held hostage and forced to complete work on a prototype ultrasonic rifle so that mercenaries can shoot down a new jet.

The Cure (Tập 10)
Biên kịch: Pat Dunlop
Ngày phát sóng: 1969-11-23
Thời lượng: 30 min
Tổng quan: Unwin visits a health farm in order to keep tabs on one of the residents, a notorious spy named Sakov, and is baffled when Sakov manages to engineer the crash of a test car whilst secured in a treatment room.

School for Spies (Tập 11)
Biên kịch: Donald James
Ngày phát sóng: 1969-11-30
Thời lượng: 30 min
Tổng quan: Unwin infiltrates a gang of saboteurs posing as priests, but will he be discovered before he reveals their nefarious schemes?

Mayday! Mayday! (Tập 12)
Ngày phát sóng: 1969-12-07
Thời lượng: 30 min
Tổng quan: Unwin is assigned to protect the King of Muldovia from his brother's assassination attempts. When the flight crew of their plane is incapacitated, Unwin ends up having to pilot the plane himself!

More Haste, Less Speed (Tập 13)
Biên kịch: Tony Barwick
Ngày phát sóng: 1969-12-14
Thời lượng: 30 min
Tổng quan: Unwin and Matthew are sent to retrieve two counterfeiting plates from the devious duo of Lord Edward and Lady Martha Hazlewell.

Mùa:

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