This episode ofStar Trek: The Original Seriesreceives a lot of hate, but it’s not even the worst episode of the series. Following the adventures of Captain James T. Kirk (William Shatner) and the USS Enterprise,Star Trek: The Original Seriesintroduced the world toGene Roddenberry’s vision of a utopian future. While the show’s low-budget effects are outdated by modern standards,TOSholds up relatively well, with compelling characters and storylines that remain relevant today. Some episodes, however, should have remained on the drawing board.

WhenStar Trekwas good, it was really good,delivering powerful stories that have beautifully withstood the test of time. But whenStar Trekwas bad, well, it could be really bad, falling into the trap of painfully out-of-date stereotypes and other unfortunate tropes. Thankfully,Captain Kirk, Mr. Spock (Leonard Nimoy), and Dr. Leonard McCoy (DeForest Kelley) made even the weakestTOSstories somewhat enjoyable,but that didn’t stop some episodes from being a slog. Although the season 3 opener, “Spock’s Brain,” is often cited asStar Trek’sworst episode, it actually holds up better than several otherTrekstories.

Kirk, Spock, and McCoy from 1960s Star Trek season 3

I’m Not Saying It’s A Good Episode, But It’s Not Star Trek’s Worst

The story of “Spock’s Brain” kicks off when an alien woman appears on the Enterprise, incapacitates the crew, and steals Spock’s brain. Captain Kirk then sets off in search of Spock’s brain, eventually discovering an underground facility inhabited by a society of primitive women who need the brain to serve as their new “Controller.” Aided with knowledge from a machine known as the “Teacher,“Dr. McCoy successfully performs incredibly complex surgery to return Spock’s brain.Kirk informs the women that they must reunite with the men on the surface and learn to survive without the Controller.

If you thought I said “brain” a lot in the above paragraph, “Spock’s Brain” actually uses the word nearly 40 times, resulting in some hilarious lines, including the iconic:“Brain and brain! What is brain?.”

Captain Picard (Patrick Stewart), Data (Brent Spiner), and Riker (Jonathan Frakes) all from TNG season 1

Admittedly, the events of “Spock’s Brain” make little sense, and the episode doesn’t explain anything. ButStar Trekoften requires the viewer to suspend their disbelief, and if you’re able to turn your own brain off for a bit,“Spock’s Brain” is actually a surprisingly entertaining hour of television.Sure, the plot is ridiculous, and everyone is taking things way too seriously, but the episode has some genuinely funny moments, and nearly every main character gets something to do. Spock remains hilariously unperturbed by his predicament throughout, as his disembodied brain communicates with Kirk through a communicator (with Nimoy’s voice despite not having vocal cords).

Several Star Trek: The Original Series Episodes Are Worse Than “Spock’s Brain”

“Spock’s Brain” may be nonsensical, but it doesn’t do anything particularly offensive. The same cannot be said for several other episodes ofStar Trek: The Original Seriesthat have aged far more poorly than the season 3 opener.TOSseason 1 has “The Alternative Factor,” which arguably makes less sense than “Spock’s Brain,“and ultimately has very little to redeem it. In its second season,Star Trek: The Original Seriesdelivered “The Omega Glory,” which involves a planet that somehow evolved so similarly to Earth that they created the exact same flag and Constitution as the United States.

10 Best Episodes Of Star Trek: The Original Series Season 3, Ranked

Season 3 may be the weakest season of Star Trek: The Original Series, but it still delivered plenty of memorable moments.

While “The Alternative Factor” is just bad, “The Omega Glory” is offensively so, with racist portrayals of the planet’s inhabitants as its most egregious sin.TOSseason 3, episode 10, “Plato’s Stepchildren” may be most known forits Kirk and Uhura’s interracial kiss, but the episode contains one ofTrek’smost cringeworthy moments as the locals force Kirk and Spock to"perform"for them. And last but not least,the series finale, “Turnabout Intrudor,” employs sexist rhetoricthat was outdated even in the 1960s and made absolutely no sense in the context of the 23rd century.

03111436_poster_w780-1.jpg

Other Star Trek Series Have Episodes Worse Than “Spock’s Brain”

There Are Hits & There Are Misses, & Then There Is Whatever These Episodes Are

With over twenty episodes per season, it’s not surprising thatStar Trek: The Original Seriesand almost every subsequentStar Trekseries has delivered a few clunkers. Arguably theworstTNGepisode, “Code of Honor,“really is as bad as most of the reviews suggest, as isTNG’s"Angel One.” Like the worstTOSepisodes,theseTNGseason 1 episodes utilize out-of-date stereotypesthat feel glaringly out of place in the 24th century.TNGimproved drastically after its first season, aside from the abysmal “Shades of Grey,” which is nothing more than a cobbled-together clip show made to save money.

10 Best Episodes Of Star Trek: The Next Generation Season 1, Ranked

Despite being the show’s weakest season, Star Trek: The Next Generation season 1 still delivered some decent episodes that set up the series' future.

Star Trek: Deep Space Nine’s"Profit and Lace” andStar Trek: Voyager’s"Threshold” also have few redeeming qualities, with the former, in particular, being sexist and decidedly unfunny. And no list of badStar Trekepisodes would be complete withoutStar Trek: Enterprise’smuch-maligned series finale, “These are the Voyages…,” which does the entire show a disservice by focusing on the cast ofTNGand unceremoniously killing off a beloved character. Despite all of these episodes, though,Star Trektruly is great (or at least good) the vast majority of the time, and even “Spock’s Brain” has its moments.

TNG’s “Code of Honor” & “Shades of Grey,” Enterpirse’s “These Are The Voyages…,” etc.