They Have No Graves as Yet

Hitler has deployed a secret weapon to knock Britain out of WW2. Ships are mysteriously sinking at an alarming rate. Britain’s maritime trade is at a standstill. Unless the Royal Navy discovers the cause, Britain will lose the war within six weeks!
Aristocratic former barrister, Lieutenant ‘Monty’ Montcalm, discovers that the Luftwaffe is dropping a new type of magnetic mine by parachute. When the Navy develops countermeasures, Germany starts dropping these gigantic mines on cities to create terror, death and destruction. Again, it falls to the Navy to counter the menace and Stephen Cunningham, a working-class pacifist and stuttering physics teacher answers the call to risk life and limb to become a Rendering Mines Safe Officer. But the Germans are not prepared to allow the likes of Monty and Stephen to foil their campaign. Their technicians devise a cunning plan – to kill the mine disposal officers and their scientist colleagues!