TV series
The Bletchley Circle follows the journey of four ordinary women with extraordinary skills that helped to end World War II. Set in 1952, Susan, Millie, Lucy and Jean have returned to their normal lives, modestly setting aside the part they played in producing crucial intelligence, which helped the Allies to victory and shortened the war. When Susan discovers a hidden code behind an unsolved murder she is met by skepticism from the police. She quickly realises she can only begin to crack the murders and bring the culprit to justice with her former friends. The Bletchley Circle paints a vivid portrait of post-war Britain in this fictional tale of unsung heroes.
Streaming, rental and purchase options
Checked Jul 22, 2026
The Bletchley Circle is available to stream on Britbox, Britbox (Via Amazon Prime), Peacock, Peacock Premium, Prime Video, Amazon Freevee, Fawesome, Pluto TV, The Roku Channel, Tubi, and YouTube in United States. You can also buy it from Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
The Bletchley Circle follows the journey of four ordinary women with extraordinary skills that helped to end World War II. Set in 1952, Susan, Millie, Lucy and Jean have returned to their normal lives, modestly setting aside the part they played in producing crucial intelligence, which helped the Allies to victory and shortened the war. When Susan discovers a hidden code behind an unsolved murder she is met by skepticism from the police. She quickly realises she can only begin to crack the murders and bring the culprit to justice with her former friends. The Bletchley Circle paints a vivid portrait of post-war Britain in this fictional tale of unsung heroes.
Choose an episode, then use the watch options above for the show.
Episode 1
When Susan Gray spots a hidden pattern in a series of murders, she tries to inform the police. But when they and her husband insist she forget her theory Susan enlists her wartime friends to try and track down the murderer.
Directed by Andy de EmmonyWritten by Guy BurtGuest stars Matthew Cullum, John Lightbody, Claire Rafferty, Thomasin Rand, James Bowers
Episode 2
As Susan and the other Bletchley women close in on the murderer of the five girls, a shocking discovery calls their theories into question and forces them to set a dangerous trap - a trap that puts one of them in even greater danger.
Directed by Andy de EmmonyWritten by Guy BurtGuest stars Matthew Cullum, John Lightbody, Thomasin Rand, Kieran Bew, Joanna Brookes, Angela Curran, Sarah Finigan, Jamie Glassman
Episode 3
Thrown into a chilling confrontation with the murderer they have so brilliantly tracked down, Susan and the other Bletchley women become locked into a ever more dangerous game of cat and mouse that leads to a seemingly inescapable conclusion.
Directed by Andy de EmmonyWritten by Guy BurtGuest stars Kieran Bew, Anastasia Hille, Simon Williams, James Puddephatt
Episode information updated Jul 24, 2026
Rachael StirlingMillie
Julie GrahamJean
Sophie RundleLucy
Anna Maxwell MartinSusan
Nick BloodBen Gladstone
Ed BirchHarry
Michael GouldDeputy Commissioner Wainwright
Mark DexterTimothy
ITV1United Kingdom
World ProductionsUnited Kingdom
