The Oncoming Storm (audio story)

 was the first story in The Churchill Years. It featured the Ninth Doctor.

Publisher's summary
Late 1939. Britain faces the might of Germany. Winston Churchill serves as First Lord of the Admiralty. But Churchill soon finds himself facing a more immediate threat than the looming Nazi menace. A 'Stone' with the most mysterious properties is discovered in the Thames' sands, and soon oddly spoken soldiers are creeping round London ruthlessly trying to acquire it. Who are they? Can Churchill and his new secretary Hetty Warner defeat them? And what about the man in the battered leather jacket that Hetty meets? Churchill feels sure they can rely on the Doctor to help them! Except that this Doctor seems to want to stay hidden in the shadows…

Cast

 * Winston Churchill - Ian McNeice
 * Hetty Warner - Emily Atack

Continuity

 * Churchill is surprised that the Doctor does not wear a hat and necktie with his leather jacket. He wore a necktie in his previous incarnation. (TV: The Name of the Doctor, The Day of the Doctor et al.)
 * Inspired by RATS, Churchill believes a mechanical soldier could be instrumental to the war effort. Churchill would go on to implement a similar program through the development of the Ironsides. (TV: Victory of the Daleks)
 * Churchill keeps butterflies in Chartwell Manor. (AUDIO: The Chartwell Metamorphosis)
 * Churchill says he has met the Doctor on a number of occasions beforehand. (PROSE: Players, COMIC: The Eagle of the Reich)