The quiet village of Bramley End is taken over by German troops posing as Royal Engineers. Their task is to disrupt England's radar network in preparation for a full scale German invasion. Once the villagers discover the true identity of the troops, they do whatever they can to thwart the Nazis plans.
Leslie Banks
as Oliver Wilsford
Elizabeth Allan
as Peggy
Frank Lawton
as Tom Sturry
Basil Sydney
as Major Hammond / Kommandant Orlter
Valerie Taylor
as Nora Ashton
Mervyn Johns
as Charlie Sims
Edward Rigby
as Bill Purvis
Marie Lohr
as Mrs. Dolly Fraser
C. V. France
as The Vicar Ashton
David Farrar
as Lieutenant Jung
Muriel George
as Mrs. Collins
Thora Hird
as Ivy