ITV has ordered a second season of its code-breaking thriller The Bletchley Circle.
The series will return for a new four-episode run, again based on the lives of four women who worked as code breakers at Bletchley Park during World War Two.
The season will contain two stories, each set across 2×60′ episodes and written by creator Guy Burt.
It is produced by Trevor Hopkins and executive produced by Jake Lushington for World Productions.
Season one, which also aired on PBS in the US, ran for three episodes in 2012.