An old woman fights a group of industrialists who are planning to build a dam and flood the valley where she grew up.
Edith Evans
Merri
Emlyn Williams
Rob
Hugh Griffith
Minister
Richard Burton
Gareth
Barbara Couper
Lady Dolwyn
Roddy Hughes
Caradoc
Andrea Lea
Margaret
Maurice Browning
Huw
Betty Stanley
Nurse Pugh
