Dark Convoy (audio story)

 was the seventh story of the fifth season of Big Finish Productions' Short Trips series. It was read by Sophie Aldred.

Publisher's summary
Materialising aboard the submarine HMS Thunder during the Second World War, the Doctor and Ace join Commander Fitzgerald and his crew as they track a fellow sub in trouble.

While the Doctor advises the Captain on navigational matters, Ace joins in a daring mission to rescue sailors in the water. With German planes overhead, no-one's survival is guaranteed...

Characters

 * Seventh Doctor
 * Ace
 * Jimmy Mayhew
 * Thomas Fitzgerald

Continuity

 * Captain Fitzgerald assumes that the Doctor is working at Bletchley Park. During his sixth incarnation, he worked in Hut 12A at Bletchley Park in 1944. (AUDIO: Criss-Cross)