Season 2 | Official Trailer
The Bletchley Circle returns for Season 2, following 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. The women use their code-breaking skills to solve crimes in post-war London. Premieres April 13 at 10 p.m. ET. Check your local listings.