A woman is held for ransom by a bitter past acquaintance who threatens to disclose a secret that could destroy her.

The District Nurse is a British television series, produced by BBC Wales and shown on BBC One between 1984 and 1987. The series was a period drama created by Julia Smith and Tony Holland and starred Nerys Hughes as Megan Roberts, the titular district nurse fighting to improve living conditions for the people living in a poverty stricken mining town, Pencwm, in south Wales during the late 1920s. The School scenes were filmed at Pont-y-gof school in Ebbw Vale, shortly before the old school was demolished. The children and teachers at the school were involved in the first two series. The outdoor school and street scenes were filmed at a small village near Tredegar. Most of the houses used have now been demolished, however the street still remains. In the third series, shown in 1987 and set in the early 1930s, Megan had moved on to the seaside town of Glanmor where she worked with a father/son pair of doctors - Emlyn Isaacs and James Isaacs.

Life is harsh but uncomplicated and happy for the Morgan family in their coal mining village in the Rhondda Valleys. But as the 20th century approaches, the younger generation is restless.