The Sign of Four
Sherlock Holmes and Dr. Watson try to track down the Great Mogul, the second-largest diamond in the world.
Where to Stream
Stream in 23 countries
Sorted by distance from 
United States
US United States
CA Canada
GB United Kingdom
BE Belgium
FR France
LU Luxembourg
DE Germany
CH SwitzerlandShowing 10 of 23 countries.
Cast, directors & writers
Ian Richardson
Sherlock Holmes
David Healy
Dr. John Watson
Thorley Walters
Major John Sholto
Michael O'Hagan
Mordecai Smith
Cherie Lunghi
Mary Morstan
Joe Melia
Jonathan Small
Terence Rigby
Inspector Layton
Clive Merrison
Bartholomew Sholto
Richard Heffer
Thaddeus Sholto
John Benfield
McMurdo
Gordon Rollings
Mr. Sherman
John Pedrick
Tonga
Robert Russell
Williams
Moti Makan
Lal Rao
Kate Binchy
Maid
Merelina Kendall
Mrs. Smith
Desmond Davis
Director
Charles Edward Pogue
Writer
Arthur Conan Doyle
Writer
About streaming The Sign of Four worldwide
Our listings show subscription, free or ad-supported streaming for The Sign of Four in 23 countries. Providers and access requirements vary by country.
In United States, the listed subscription streaming options for The Sign of Four are Amazon Prime Video and Amazon Prime Video with Ads.
JustWatch TV and Fawesome are listed with free streaming offers for The Sign of Four in United States. Check the service for account requirements.
Ad-supported streaming is listed on The Roku Channel, YouTube Free, Plex, Plex Channel, Filmzie, and Tubi TV in United States. Check the provider for access requirements.
Our listings also show streaming in 22 other countries, including Canada, French Guiana, and United Kingdom. Follow the country guides below to compare providers.
Amazon Prime Video, Amazon Prime Video with Ads, JustWatch TV, Tubi TV, Filmzie, and Plex are also listed in Canada. Catalogs and season coverage can differ between countries.
Automatically summarized from TMDB watch-provider listings supplied by JustWatch. Listings fetched . Streaming availability can change. Rental and purchase offers are not included.