China / SEASON
Series 4
3 listed episodes · First aired January 1, 2017
Season overview
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.
EPISODE GUIDE
Full guide ↗Episodes
E1The 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?
E2The Lying DetectiveSherlock 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.
E3The Final ProblemHolmes and Watson travel to Europe to escape Moriarty's vengeance.