Sherlock Holmes and Dr. Watson battle a zombie outbreak that threatens to overwhelm London! In 1854, a meteor streaked across Londonrs"s skies, bringing with it a zombie plague. For twenty years, Her Majestyrs"s Secret Service kept the threat under control. But now dastardly fi end Moriarty has begun using the zombies in an attempt to overthrow the Victorian Government. Sherlock Holmes and Dr. Watson must face off against their favorite foe, MI-5 and zombies at the same time.