Sherlock: Season 4 (2017)

Season 4

Critics Consensus

Sherlock makes a welcome and shocking return, and Cumberbatch and Freeman are game, but it may prove difficult to live up to the lofty expectations created by the series' lengthy hiatus.



Critic Ratings: 28


Audience Score

User Ratings: 3360

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Air date: Jan 1, 2017

Sherlock waits to see where Moriarty will make his posthumous move. One mysterious case in particular baffles Scotland Yard, but Sherlock is more interested in a seemingly trivial detail. Why is someone destroying images of the late prime minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work? Something with its roots deep in Mary Watson's past...

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Air date: Jan 8, 2017

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. Estranged from his best friend John Watson, Sherlock seems to have descended into hell. Is there any way back from the abyss into which the detective has fallen?

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Air date: Jan 15, 2017

In the final episode of this series, 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?

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Critic Reviews for Sherlock Season 4

All Critics (28) | Top Critics (11)

It's a jolly enough episode, but not as thrillingly stylish as some past adventures.

Apr 11, 2019 | Rating: 3/5 | Full Review…

Not many shows can handle such swift and complete shifts in tone as this, but Sherlock makes them look positively elementary.

Feb 13, 2018 | Full Review…

How great to see Jones let rip after so many down-at-heel roles; even his toothy leer, which reminded me of Alec Guinness's in The Ladykillers, felt award-worthy.

Dec 27, 2017 | Rating: 4/5 | Full Review…

Sherlock selects plot elements and incidental details from the original stories and mixes and mashes them together, adding new ingredients to taste.

Jan 3, 2017 | Full Review…

They've abandoned the mystery format that makes Holmes such a fun character to be around. In an almost literal sense, they've lost the plot.

Oct 3, 2019 | Full Review…

Frankly, it's just a shame the BBC only bothered to make the finale worth watching, rather than the whole series.

Jul 9, 2019 | Full Review…

The stories were plodding, melodramatic garbage and the episodes weren't even well made.

Mar 13, 2019 | Rating: F | Full Review…

If this is the end, then it leaves the people who loved the show for its celebration of difference with a troubling message: that difference makes you a hero if you're a white man, and an aberration if you're anyone else.

Apr 12, 2019 | Full Review…

It seems typically Moffatian that we finally learned more about Mary's intriguing backstory just before we lost her, but the mystery surrounding her work with AGRA proved to be a compelling framework for the episode.

Apr 11, 2019 | Full Review…

Instead of truly reckoning with those emotional crises, the Sherlock season four finale is riddled with improbable showiness, melodramatic conclusions, and logic-defying puzzling turning points.

Aug 28, 2018 | Full Review…

The show makes something of a thesis statement. It would've been interesting for Sherlock to explore this idea more, or to do something with its modern setting other than show what Sherlock Holmes looked like solving mysteries in it.

Aug 6, 2018 | Full Review…

This season of Sherlock was a rollercoaster of emotions. [Full Review in Spanish]

Jul 10, 2018 | Full Review…

Audience Reviews for Sherlock: Season 4

  • Apr 02, 2021
    This show was witty and never dull, but it just tried too hard to be over the top. Sharks jumping sharks.
  • Mar 23, 2021
    Only the last episode is bad , but the problem is, that the last episode is very bad.
  • Feb 27, 2021
    What can I say about this season? It's such a waste of the fantastic cast. COME ON, you've got Benedict Cumberbatch and Martin Freeman as Sherlock and John Watson, they deserve a more logical, less self-indulgent story, so do us, the viewers. Series 4 cannot make sense on its own, and IT MADE THE PREVIOUS SERIES LIKE A JOKE. It is a disaster and has also ruined the beauty of S3 and TAB. Shame on the writers.
  • Feb 22, 2021
    It doesn't look good at all, and the finale itself didn't look good too as well.
  • Feb 22, 2021
    Pior temporada de longe, decidiram inventar um personagem que não existe nem nos livros nem em outra adaptação do Sherlock Holmes que é uma "irmã secreta" do Sherlock e como colocaram ela na série foi muito forçada. Os escritores estavam mesmo sem ideia.
  • Feb 14, 2021
    Yet another forced attempt at making another show into a feminist propaganda piece! I respect equality wholeheartedly but this kind of forced ideology drives people away from welcoming equality with open arms. Human nature is to accept and respect voluntarily and with a choice. Forcing one to live in a very specific agenda as the fourth wave feminist do is shallow and empty. You win people with dialogue not force.
  • Feb 03, 2021
    Really, just not Sherlock. More like a John le Carrier spy novel.
  • Jan 12, 2021
    Despite some criticism, I still really enjoyed this season
  • Jan 10, 2021
    I want to assume that no fourth season has been made. A story that is no longer interesting and Sherlock Holmes that can no longer surprise us. This bad season that ruin what I had in mind about the new Sherlock Holmes. I guess it do not exist.
  • Dec 22, 2020
    The stories and writing just aren't as strong in this season.

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