'Professor Moriarty is not a man who lets the grass grow under his feet.' Twisted genius Professor Moriarty draws Sherlock Holmes and Dr John Watson on a cat-and-mouse chase through London and Europe with a series of convoluted cases to plot the downfall of the consulting detective. The confrontation culminates in a struggle against the infamous Reichenbach Falls. Will Sherlock Holmes survive, or will Moriarty succeed in his sinister plans?