Sherlock Holmes and Doctor Watson get involved with Balkan terrorists to save Emperor Franz Joseph I of Austria from an assassination at the opera house and prevent World War I.
Sherlock Holmes
Dr. Watson
Irene Frances Adler
Sigmund Freud
Franz Winterhauser
Major Von Bork
Dr. Froelich
Franz Dietrich
Zygovich
Hugo Oberstein
Reginald Cholmondley
Michael Simpson-Makepeace
Franz Hoffman
Serge Duvok
Stage Door-Keeper
Sherlock Holmes
Dr. Watson
Irene Frances Adler
Sigmund Freud
Franz Winterhauser
Major Von Bork
Dr. Froelich
Franz Dietrich
Zygovich
Hugo Oberstein
Reginald Cholmondley
Michael Simpson-Makepeace
Franz Hoffman
Serge Duvok
Stage Door-Keeper
