The TARDIS has brought the Doctor, Jamie and Zoe to Normandy in
France, not in 1066 as intended, but in 1944, three days before the
Allies are due to launch the D-Day landings.
Joining forces with French partisans, they learn that the Germans
have been conducting secret experiments at a nearby chateau. These
experiments form part of a plan that German high command believe will
enable them to win the Second World War. The name of that plan?
Operation Werewolf.
Based on a storyline submitted to the Doctor Who production office in 1967 by Douglas Camfield and Robert Kitts.