Doctor Who: Short Trips: Dark Convoy (5.7)
Released July 2015
Written By: Mark B Oliver
Starring: Sophie Aldred
Duration: 34 minutes
From £2.99
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Materialising aboard the corvette HMS Thunder during the Second World War, the Doctor and Ace join Commander Fitzgerald and his crew as they track an allied submarine 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...