The fourth series begins with the nation’s favourite detective, the mercurial Sherlock Holmes, back once more on British soil, as Doctor Watson and his wife, Mary, prepare for their biggest ever challenge - becoming parents for the first time.
Release Date
PremieredSherlock Season 4 released on January 1, 2017.
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Sign In to Track ProgressSeasons
The Six Thatchers
Why is someone destroying images of Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?
The Lying Detective
Sherlock faces perhaps the most chilling enemy of his long career: the powerful and seemingly unassailable Culverton Smith – a man with a very dark secret indeed.
The Final Problem
Holmes and Watson travel to Europe to escape Moriarty's vengeance.
Latest Trailers and Teasers
Official Hulu Trailer
Sherlock: Series 4 | Trailer - BBC One
Sherlock
Series 4
The fourth series begins with the nation’s favourite detective, the mercurial Sherlock Holmes, back once more on British soil, as Doctor Watson and his wife, Mary, prepare for their biggest ever challenge - becoming parents for the first time.
Release Date
PremieredSherlock Season 4 released on January 1, 2017.
Your Progress
Track your watching progress by signing in
Sign In to Track ProgressThe Six Thatchers
Why is someone destroying images of Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?
The Lying Detective
Sherlock faces perhaps the most chilling enemy of his long career: the powerful and seemingly unassailable Culverton Smith – a man with a very dark secret indeed.
The Final Problem
Holmes and Watson travel to Europe to escape Moriarty's vengeance.