The Bletchley Circle II: Blood on Their Hands, Part 1

The Bletchley Circle II: Blood on Their Hands, Part 1

Thursday, September 25 at 9:00 p.m.

The Bletchley Circle codebreakers are back on the case.

Follow four ordinary women with the extraordinary ability to break codes, a skill honed during World War II when they worked undercover at Bletchley Park, site of the United Kingdom’s main decryption establishment.

In the first episode, "Blood on Their Hands," airing September 25 and October 2 at 9:00 p.m., another Bletchley Park colleague, Alice Merren is in prison awaiting trial for murder. Jean, believing Alice is covering for someone, begins to reunite the circle to help establish the innocence of one of their own.

The investigation leads to a young woman who seems to have had a relationship with the deceased and in whose home they find documents suggesting a military cover-up of a chemical spill. The women take dangerous chances to try to exonerate Alice.

Pictured, left to right: Hattie Morahan as Alice Merren, Sophie Rundle as Lucy, Anna Maxwell Martin as Susan, Rachael Stirling as Millie and Julie Graham as Jean