The first trailer has been released for the highly-anticipated sequel Sherlock Holmes: A Game of Shadows, which hits theaters nationwide on December 16. Click on the video player below for your first look at this upcoming adventure, which stars Robert Downey Jr., Jude Law, and Jared Harris as Moriarty.

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.

RELATED: Has Robert Downey Jr. Finally Started Production on Sherlock Holmes 3?