Realizing now how lonely and isolated he is without his old comrade, and adrift in a new modern and war-ravaged age, Holmes comes to wonder whether, like Watson, he too has come to the end of his time.
Author Arthur Conan Doyle employs the services of Professor Moriarty to bring an end to the career of the Great Detective. Holmes rises to the challenge and not only encounters his nemesis Moriarty but also learns the terrible truth.
Sherlock Holmes and Dr John H Watson are drawn into one of the darkest plots ever to shake the foundations of England. There are Freemasons, conspiracies and plots at the highest level of the establishment.