00685cgm a2200181 4500 681653790 TxAuBib ||||||s2014||||||||||||||||||||||v|und|u TxAuBib Bletchley Circle / Season TWO - Disc ONE [TV-DVD] : Blood on their hands. PBS, 2014. Color; 180 mins.; 1 disc of two. Takes place in 1953: The series is based on the lives of four extraordinary and brilliant women who worked at top- secret HQ Bletchley Park during World War II. Adults. Historical - England - 1952. Period drama. Suspense.