During World War I, an illegitimate son of the German Kaiser, who had been raised in the US--and is a double for the Kaiser's son, the Crown Prince--is sent to Germany as a spy in order to kill both the Kaiser and his son.
Earl Schenck
Claire Whitney
Percy Standing
Louis Dean
John Sunderland
Fred Hearn
Charles T. Parr
Philip Van Loan
Billie Wagner
Victor De Linsky