Videos: Trailers, Teasers, Featurettes
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.
Streaming, rent, or buy Sherlock – Season 4:
Currently you are able to watch "Sherlock - Season 4" streaming on Netflix or for free with ads on UKTV Play. It is also possible to buy "Sherlock - Season 4" as download on Google Play Movies, Apple iTunes, Amazon Video, PlayStation.