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Season 4 2017

  • 2017-01-01T21:00:00Z on BBC One
  • 90 mins
  • 4 hours, 26 mins (3 episodes)
  • United Kingdom
  • English
  • Drama, Crime, Mystery

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.

3 episodes

4x01 The Six Thatchers

  • Season Premiere

    2017-01-01T21:00:00Z — 88 mins

One mysterious case in particular baffles Scotland Yard - but Sherlock is more interested in a seemingly-trivial detail. Why is someone destroying busts of the late Prime Minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?

4x02 The Lying Detective

  • 2017-01-08T21:00:00Z — 89 mins

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.

4x03 The Final Problem

  • 2017-01-15T21:00:00Z — 89 mins

Long buried secrets finally catch up with the Baker Street duo. Someone has been playing a very long game indeed and Sherlock and John Watson face their greatest ever challenge. Is the game finally over?