In World War II, a British secret agent carrying a vitally important document is kidnapped en route to Washington. The British government calls on Sherlock Holmes to recover it.

Basil Rathbone
as Sherlock Holmes

Nigel Bruce
as Doctor Watson

Marjorie Lord
as Nancy Partridge

Henry Daniell
as William Easter

George Zucco
as Heinrich Hinckel aka Richard Stanley

John Archer
as Naval Lt. Pete Merriam

Gavin Muir
as Mr. Lang, government agent

Edmund MacDonald
as Detective Lt. Grogan

Don Terry
as Howe

Mary Gordon
as Mrs. Hudson
CinemaSerf
When a British agent carrying a secret document to Washington goes missing, His Majesty’s government drafts in the services of “Holmes” (Basil Rathbone) and “Watson” (Nigel Bruce) to investigate. After a very near miss at the missing man’s lodgings, the pair conclude that they must head to the US of...