Not Every Sherlock Episode Earned Its Place — Some Stand Far Above

Few TV shows have inspired the kind of devoted, sometimes anguished fandom that BBC’s Sherlock managed during its four-series run. Starring Benedict Cumberbatch as a brilliantly reimagined Sherlock Holmes and Martin Freeman as his loyal companion Dr. John Watson, the show redefined what a detective drama could look like — and sparked endless debate about which episodes were genuinely great and which ones fell short of the promise.

With only 13 standard episodes and one special to its name, every installment carries weight. But not all of them land equally. Some are considered near-perfect television. Others are widely regarded as ambitious misfires. And the conversations about where each episode ranks have never really stopped.

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What Made Sherlock Such a Hard Show to Rank

Part of what makes ranking Sherlock episodes so contentious is the show’s uneven format. Each series contains just three feature-length episodes — closer to short films than traditional TV — plus the standalone Victorian-era special, The Abominable Bride, which aired in January 2016.

That structure means a single weak episode can define an entire series in viewers’ memories. It also means the highs feel genuinely cinematic. When Sherlock worked, it really worked. When it didn’t, the cracks were impossible to miss.

The show ran from 2010 to 2017, with Series 1 through 4 airing across that span alongside the special. Critical reception was strongest in the early series and grew more divided as the show became more self-referential and plot-heavy in later seasons.

The Sherlock Episodes, From Weakest to Strongest

Based on verified critical consensus, audience scores, and documented fan reception, here is how the 13 standard episodes and one special are generally regarded — from least to most celebrated:

Note: Rankings reflect general critical and fan consensus from the public record. Individual opinions vary widely, particularly regarding Series 3 and Series 4 episodes.

The Episodes That Define the Show’s Legacy

The Study in Pink, the very first broadcast episode, is almost universally praised as one of the best series premieres in modern British television. It introduced Cumberbatch’s razor-sharp, socially detached Holmes and Freeman’s quietly affecting Watson with remarkable confidence — establishing the show’s visual grammar and tone in a single 90-minute run.

A Scandal in Belgravia is frequently cited alongside it as the show’s creative peak. The episode, based on Arthur Conan Doyle’s A Scandal in Bohemia, introduced Irene Adler and pushed the character dynamics into genuinely complex territory. Many critics consider it the finest individual episode the show ever produced.

The Reichenbach Fall remains the most emotionally devastating entry in the series — the episode in which Sherlock fakes his own death at Moriarty’s manipulation. Its closing sequence is still discussed years later as one of the most effective cliffhangers in recent TV history.

Where the Show Lost Some Viewers

Series 4 is where critical opinion fractured most sharply. The Six Thatchers, which opened the final series in January 2017, received a notably mixed reception — praised for its ambition but criticized for feeling overstuffed and for a major plot development that many viewers felt was handled poorly.

The Final Problem, the series finale, divided audiences deeply. Some found its gothic, puzzle-box structure thrilling. Others felt it prioritized spectacle over the character work that had made the early series so compelling.

The Abominable Bride, the Victorian-set special, occupies an interesting middle ground. Its concept — Holmes and Watson transplanted to the 1890s setting of Doyle’s original stories — was widely welcomed. But its structural twist, which reframed much of the episode as a mind-palace sequence, left some viewers frustrated and others genuinely impressed.

Why These Rankings Still Matter in 2025

Sherlock has been off the air since 2017, but conversations about a potential revival or continuation have never fully gone away. Both Cumberbatch and Freeman have remained prominent figures in film and television, which keeps the question of whether Sherlock might return alive in fan communities.

In that context, revisiting which episodes worked and which didn’t isn’t just nostalgia — it’s a framework for understanding what any future version of the show would need to get right. The early series succeeded because of restraint, wit, and genuine chemistry. The later series struggled when it leaned too heavily on mythology and shock value.

The ranking debate is really a debate about what Sherlock was at its best — and whether it could ever find that again.

Frequently Asked Questions

How many episodes of Sherlock are there in total?
There are 13 standard episodes across four series, plus one standalone special — The Abominable Bride — making 14 episodes in total.

When did Sherlock first air on the BBC?
The show premiered on BBC One in July 2010, with A Study in Pink as the first broadcast episode.

Which series of Sherlock is considered the best?
Series 1 and Series 2 are most consistently cited by critics and fans as the show’s strongest, with Series 2 in particular frequently praised for containing some of the finest individual episodes.

Is The Abominable Bride considered a good episode?
Opinion is genuinely split. The Victorian setting was widely praised, but the episode’s structural twist — revealing much of the story as a mind-palace sequence — divided viewers on whether it was clever or frustrating.

Will there be a Sherlock Series 5?
As of the time of writing, no confirmed plans for a fifth series have been officially announced, though the possibility has been discussed publicly on multiple occasions.

Which Sherlock episode is considered the worst?
Based on general critical and fan consensus, The Six Thatchers, the opening episode of Series 4, is most frequently cited as the weakest entry in the show’s run.