The BEST Episodes of The Bletchley Circle

Every episode ever - ranked by fan votes!

Last Updated: Jan 8, 2020

Network: ITV1

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.

Cracking a Killer's Code, Part 2

#1 - Cracking a Killer's Code, Part 2

Season 1 - Episode 2 - Aired Sep 13, 2012

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.

star 8.27
427 votes
Directors: Andy De Emmony
Writers: Guy Burt
Cracking a Killer's Code, Part 3

#2 - Cracking a Killer's Code, Part 3

Season 1 - Episode 3 - Aired Sep 20, 2012

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.

star 8.03
388 votes
Directors: Andy De Emmony
Writers: Guy Burt
Cracking a Killer's Code, Part 1

#3 - Cracking a Killer's Code, Part 1

Season 1 - Episode 1 - Aired Sep 6, 2012

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.

star 7.94
433 votes
Directors: Andy De Emmony
Writers: Guy Burt
Blood on Their Hands, Part 1

#4 - Blood on Their Hands, Part 1

Season 2 - Episode 1 - Aired Jan 6, 2014

Former Bletchley Park worker Alice Merren is in prison awaiting trial for the murder of the eminent scientist John Richards. Driven by her belief in Alice's innocence and that she is hiding the truth about John's death, Jean attempts to regroup the circle in order to help establish the innocence of one of their own.

star 7.82
270 votes
Directors: Jamie Payne
Writers: Guy Burt
Uncustomed Goods, Part 1

#5 - Uncustomed Goods, Part 1

Season 2 - Episode 3 - Aired Jan 20, 2014

Spirited Millie is earning a bit of money selling odds and ends on the black market. But Millie stumbles across a seam of post-Second World War unwholesomeness when she annoys some very dangerous people and gets into trouble. Soon, the other Bletchley girls must rally to her aid.

star 7.80
219 votes
Directors: Sarah Harding
Writers: Guy Burt
Uncustomed Goods, Part 2

#6 - Uncustomed Goods, Part 2

Season 2 - Episode 4 - Aired Jan 27, 2014

Lack of action by the police leaves the women to conclude there must be corruption within the vice squad and that catching the gang red-handed is their only option. Plotting to infiltrate the crime ring to find out the location of the hotel being used as a base, they visit Marta in her restaurant, pretending Jean is a potential new client. This leads to an opportunity for Lucy to memorise the businesswoman's ledger, which may hold the key to the whole operation.

star 7.77
244 votes
Directors: Sarah Harding
Writers: Guy Burt
Blood on Their Hands, Part 2

#7 - Blood on Their Hands, Part 2

Season 2 - Episode 2 - Aired Jan 13, 2014

Following the discovery of Lizzie Lancaster's true identity, the women face a race against time to prove Alice's innocence and save her from the hangman's noose. However, subsequent investigations lead to the discovery of a much darker military conspiracy.

star 7.51
230 votes
Directors: Jamie Payne
Writers: Guy Burt