Robert Downey Jr. reprises his role as the world's most famous detective, Sherlock Holmes, and Jude Law returns as his formidable colleague, Dr. Watson, in “Sherlock Holmes: A Game of Shadows.”

Sherlock Holmes has always been the smartest man in the room…until now. There is a new criminal mastermind at large—Professor Moriarty (Jared Harris)—and not only is he Holmes' intellectual equal, but his capacity for evil, coupled with a complete lack of conscience, may actually give him an advantage over the renowned detective.

Holmes' investigation into Moriarty's plot becomes ever more dangerous as it leads him and Watson out of London and across Europe, to France, Germany and finally to Switzerland.

But the cunning Moriarty is always one step ahead as he spins a web of death and destruction—all part of a greater plan that, if he succeeds, will change the course of history.

Filmmaker Guy Ritchie returned to direct “Sherlock Holmes: A Game of Shadows,” the follow-up to the smash hit “Sherlock Holmes.” The sequel also reunited producers Joel Silver, Lionel Wigram, Susan Downey and Dan Lin. Bruce Berman and Steve Clark-Hall served as executive producers.

Jared Harris (TV's “Mad Men,” “The Curious Case of Benjamin Button”) joins the cast as the notorious Professor Moriarty. In her first English-speaking role, Swedish actress Noomi Rapace, who gained international attention in the Swedish film “The Girl with the Dragon Tattoo,” plays Sim. Stephen Fry (“Alice in Wonderland,” “Harry Potter and the Goblet of Fire”) is Mycroft Holmes, Sherlock's older brother.

Additional cast members returning from the first film include Eddie Marsan as Inspector Lestrade; Rachel McAdams as Irene Adler; Kelly Reilly as Watson's bride, Mary Morstan; and Geraldine James as Holmes's long-suffering landlady, Mrs. Hudson.

“Sherlock Holmes: A Game of Shadows” is written by Michele Mulroney & Kieran Mulroney. Sherlock Holmes and Dr. Watson were created by the late Sir Arthur Conan Doyle, and appear in stories and novels by him.

Ritchie once again collaborated with the behind-the scenes team from the first movie, including director of photography Philippe Rousselot, production designer Sarah Greenwood, editor James Herbert, costume designer Jenny Beavan, and composer Hans Zimmer.

Warner Bros. Pictures presents, in association with Village Roadshow Pictures, a Silver Pictures Production, in association with Wigram Productions, a Guy Ritchie Film, “Sherlock Holmes: A Game of Shadows.”