Sherlock Holmes and Dr. Watson revisit the case of The Sign of Four when they attempt to retrieve the Agra treasures that were lost to the Thames River Bank.
When military documents are stolen from a Government building, and the suspects caught, but minus the documents, Sherlock Holmes and his friends are called in to get to the bottom of it.
Back from his faked death at the Reichenbach Falls, Sherlock Holmes puts the record straight about what exactly happened leading up to the crucial final moments.