The Hellsing Organization is under siege as London is falling to the Nazi vampire forces of the Millennium Project, who are turning the streets into rivers of blood and the citizenry into a legion of horrors. With Hellsing's undead champion Alucard trapped at sea, the end nears for the defenders of the realm. And with this murderous conflict reaching its zenith, the Vatican seizes the opportunity to strike and take down both Millennium and Hellsing in one swift stroke!