In this second programme we look at the remarkable story of 91-year-old Eileen Younghusband from Sully.
It's a story about her work that was vital in defending Britain, yet still not widely told.
Eileen was just 19 when she was chosen as part of a select band of young women to work in the secret Filter Room, which was the nerve centre of the radar system during the War. These women were responsible for tracking hostile planes as they approached British shores, so that fighters could be scrambled to attack. Their information also led to air raid warnings, saving countless lives.
These highly intelligent young women had to be very good at maths and extremely calm under pressure, with no calculators or computers to help them there was no room for error!