"At the tale end of 1917 the Germans introduced a new type of gas to the battlefield, T-Leiche, or "corpse gas" as this new weapon is more commonly known, changed the face of the war. Rather than affect the living, it resurrects the bodies of the dead, giving the enemy an almost unlimited source of fresh troops. After surviving the killing fields of France, Burke and Company are sent into the devastated, zombie-infested city of London to rescue Princess Veronica, the sole surviving member of the royal family. However, Kaiser Richthofen, the undead Red Baron and now leader of Germany,also sends a team of his own, led by Burke's infected former teammate, Sgt Moore"--