It's 1942 and a fleet of German mini-submarines are loose in the Mediterranean wreaking havoc on Allied shipping, sinking urgently required supplies destined for Malta and Alexandria and the new invasion beachhead in Algeria, thus jeopardising the squeezing of Rommel out of North Africa.
Awaiting an ETA regarding a large American convoy, they are re-arming and refuelling at their base in Vichy France near the Spanish border.
Can the British...