From 1959 to 1961, the lives of five telephone operators in Derby.
Susi and Johnny are ready to tie the knot. Meanwhile, Chris suspects Dave of keeping a secret.
Mike plans a romantic trip to Paris for Sylvia, which leads her to discover a terrible family secret.
Chris and Dave are set to go on their first official date. while Miss Armitage finds romance at the Locarno tea dance.
Ricky Rocket - a Billy Fury lookalike and guitarist with his own band - tries to recruit Chris to be his lead singer. But a flu epidemic at the exchange could lead to a change in plan.
Ronni and Sylvia decide to throw a surprise birthday party for Chris. But their plans are almost ruined when Chris realises, much to her consternation, that her enigmatic suitor is not Dave.
Miss Marriott persuades Chris, Sylvia and Ronni to perform at a GPO charity gala night. But the arrival of a young Australian telephonist threatens to upset all their plans.
Chris is still at war with new engineer Dave Curtis, and Sylvia is dithering over an invitation from Mike. But Ronni is hiding a secret that could have repercussions for them all.
It's 1961. Ronni is just back from Italy, and Sylvia and Chris have moved into a flat together. Automation of the telephone switchboards threatens to lead to job losses.
From 1959 to 1961, the lives of five telephone operators in Derby.
