Two Bletchley Circle codebreakers head to San Francisco to pursue a serial killer.
Source: ITV
Episode 8
A death in the Big Bop Club brings an international incident to the womens' doorstep.
17-05-2019
ITV
Episode 7
When a Russian diplomat dies in Iris's arms, Iris is forced to protect her family.
10-05-2019
ITV
Episode 6
The women craft a complex sting operation in order to draw out two warring factions.
03-05-2019
ITV
Episode 5
A bloodied and battered stranger drags Millie and Jean into a warring underworld.
26-04-2019
ITV
Episode 4
After an innocent man is charged with murder, the women face a race against time.
15-08-2018
ITV
Episode 3
The four women delve into the mysterious death of Iris's suburban friend.
08-08-2018
ITV
Episode 2
Subsequent deaths make it clear: San Francisco is in the grip of a serial killer.
01-08-2018
ITV
Episode 1
Two Bletchley Circle codebreakers head to San Francisco to pursue a serial killer.
25-07-2018
ITV
Episode 5
A bloodied and battered stranger drags Millie and Jean into a warring underworld.
26-04-2019
ITV
Episode 2
Subsequent deaths make it clear: San Francisco is in the grip of a serial killer.
01-08-2018
ITV
Episode 8
A death in the Big Bop Club brings an international incident to the womens' doorstep.
17-05-2019
ITV
Episode 3
The four women delve into the mysterious death of Iris's suburban friend.
08-08-2018
ITV
Episode 7
When a Russian diplomat dies in Iris's arms, Iris is forced to protect her family.
10-05-2019
ITV
Episode 1
Two Bletchley Circle codebreakers head to San Francisco to pursue a serial killer.
25-07-2018
ITV
Episode 6
The women craft a complex sting operation in order to draw out two warring factions.
03-05-2019
ITV
Episode 4
After an innocent man is charged with murder, the women face a race against time.
15-08-2018
ITV