Robert Downey Jr. reprises his role as the world's most famous detective, Sherlock Holmes, and Jude Law returns as his friend and colleague, Dr. John Watson, in Sherlock Holmes: A Game of Shadows. There is a new criminal mastermind at large-Professor James Moriarty (Jared Harris)-and not only is he Holmes' intellectual equal, but his capacity for evil, coupled with a complete lack of conscience, may give him an advantage over the renowned detective. Holmes' investigation into Moriarty's plot becomes more dangerous as it leads him and Watson out of London to France, Germany and finally Switzerland. But the cunning Moriarty is always one step ahead, and moving perilously close to completing his ominous plan. If he succeeds, it will not only bring him immense wealth and power but alter the course of history.