Foyle's War (2002–2015)
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The Eternity Ring 

MI5 suspects British atomic research has been infiltrated and asks Foyle to look into whether a Russian spy network could be at work in the heart of London.



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Episode cast overview, first billed only:
Max Hoffman
Professor Fraser
Kate Duchêne ...
Helen Fraser (as Kate Duchene)
American Scientist
Dylan Charles ...
Aleksei Gorin
Tim McMullan ...
Joe Duttine ...
Frank Shaw
Ellie Haddington ...
Sir William Chambers
Jennifer Hennessy ...
Ruth Shaw
Sam Clemmett ...
Jack Shaw
Gyuri Sarossy ...
Tomasz Debski
Steve Wilson ...
Duty Police Officer


1945:- A group of scientists observe the testing of an atomic bomb at Los Alamos in the New Mexico desert. A year later Foyle is approached by Hilda Pierce, now working for MI5. Her boss Sir William Chambers explains that a Russian defector, Gorin, has supplied them with news of the Eternity Ring, a group of Soviet sympathisers bent on betraying Britain's atomic secrets. Sam is now working as a secretary to Professor Fraser, one of the suspects who was present at Los Alamos and Foyle meets up with her, being introduced to Fraser and his colleague Max Hoffman, a Polish communist who escaped Nazi persecution. Both work at Armwell Atomic Research Station. Hoffman connects Sam to Foyle and she is sacked but when uranium is stolen from Armwell and the thief murdered, she joins Foyle in investigating the Eternity Ring - as well as helping husband Adam stand for election as a Labour MP. Written by don @ minifie-1

Plot Summary | Add Synopsis


Crime | Drama | Mystery | War




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Release Date:

15 September 2013 (USA)  »

Filming Locations:


Company Credits

Show detailed on  »

Technical Specs



Aspect Ratio:

16:9 HD
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Did You Know?


The character "Aleksei Gorin" is loosely based on the Soviet defector Igor Gouzenko. See more »


The city street scenes are in Dublin (The Iveagh Markets, River Liffey waterfront), meant to be London. See more »


[first lines]
Max Hoffman: Professor Fraser, Max Hoffman. We met briefly.
Professor Fraser: At Oak Ridge, Tennessee. Yes, yes, I remember.
Max Hoffman: I love your work of course, Professor, and I'm, I'm delighted to see you.
Professor Fraser: My wife, Helen; she works as my assistant.
Max Hoffman: Ah. Pleased to meet you, Mrs. Fraser.
Helen Fraser: How do you do?
Max Hoffman: Ah, come, come. We should finish and get inside. The test will be starting soon.
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Moonlight Sonata
Composed by Ludwig van Beethoven (as Ludwig von Beethoven)
Played on piano
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User Reviews

worst episode in one of the best series of all time
14 September 2013 | by (North America) – See all my reviews

Lets be crystal. This series is one of the best series of all time, doing what British TV does best, that is, each episode presents a mystery to the viewer against a backdrop of some of the best characterizations you are likely to encounter in your lifetime. What is especially charming about FW, generally, is how you come to identify with the characters, especially Honeysuckle Weeks playing the ever-faithful, ever-cheery driver -- as sort of an extended family, and look forward to spending time with them. Which brings us to this episode. It is wrong on so many levels one hardly knows where to start. The pace is off. Foyle is usually the driver for the action, although doing so in an understated way is part of the delight of watching Kitchen in action. Here the action is chaotic and confusing. Foyle seems to be following not leading. The tone is off. Usually Weeks and Foyle can be counted on to provide the moral backbone, the spirit, for whatever shenanigans are afoot. Here Weeks looks and acts like she just got out of Rehab. Yes, the plot does ultimately explain this, but hobbling a chief character to make a point is rather like handicapping the quarterback in the Rose Bowl. It makes no sense. At the end of the day, one cannot escape the conclusion that the entire episode served no useful purpose other than to set up the final 3 minutes during which Foyle is offered an opportunity to continue to function as he had for the first 7 seasons. Which is ironic, considering that, had the writer not diddled with his character in the first place (a "backstory trip" to America that is only referred to sporadically) they would not have needed this abomination just to bring him back.

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