Council of WarSynopsis :
At the Doctor's request, Sergeant Benton is investigating ghosts and missing people in Kettering, while undercover as a local councillor
And that's how he comes to meet Margery Phipps.
An alien incursion in the town hall leads them on a journey to a terrible future – where Margery discovers how she changed a world, and the life of a whole civilisation hangs in the balance… Casting :
Sergeant Benton - John Levene
Margery Phipps - Sinead Keenan
Source : http://tardis.wikia.com/wiki/The_Council_of_War_%28audio_story%29