Good footage of men of the Observer Corps working at their posts.
Titles read: "Pathetone Lightens The 'Blackout' With - EYES ON THE SKIES!"
Somewhere in England (exact location of events not specified).
Brief scenic shots of snow-covered countryside. Two men of the Observer Corps trudge through the snow to their post. Several shots of these men and others in dugouts, looking at the sky through binoculars and other viewing apparatus. C/U of armband on one of the men reading 'Observer Corps'. Brief shots of the local operations centre where calls are received from the Corps; men wearing radio headphones. Shots of aeroplanes flying overhead and charts detailing different kinds of planes. C/Us of men of the Observer Corps.
Note: good footage of Observer Corps at work.