10 Greatest Sci-Fi Shows With Fewer Than 40 Episodes

5 hours ago 11

Many, if not most, of history's greatest and most influential sci-fi TV shows are quite long. After all, few genres better lend themselves to expansive narratives that cover episode after episode of epic space exploration, fascinating futuristic concepts, and thought-provoking reflections of our real world. Throughout history, however, plenty of sci-fi shows have been able to make history with merely 40 episodes or fewer.

It's no easy task for a show to leave a massive impact in such a brief amount of time, particularly not when it comes to a genre that's so often on the significantly longer side. However, these masterpieces have proven that a few dozen episodes at most are all you need to deliver a truly masterful sci-fi story on the small screen. From animated gems like Arcane to live-action classics like The Prisoner, it's stunning what these shows are able to achieve with less than 40 episodes.

'Arcane' (2021–2024)

Jinx (Ella Purnell) stands, center of frame, with a determined glare and one eye hidden behind a strand of blue hair in a still from 'Arcane' season 2.

Who could have guessed that an animated show based on League of Legends, of all video games, would end up delivering one of the most memorable science fantasy experiences of the 21st century? Indeed, Arcane is one of those sci-fi shows perfect for a weekend binge, with some of the richest character development and world-building that the genre has seen in years.

The most stunning part of the whole deal is that Arcane achieves that level of narrative depth with a mere 18 episodes, each one being among the most visually stunning episodes of television that animation has ever delivered. Add to that the perfect way in which the show blends its magepunk fantasy elements with soft steampunk elements, and you get one of the most delightfully creative shows of the last decade.

'Watchmen' (2019)

Alan Moore, Dave Gibbons, and John Higgins' Watchmen is a comic book limited series from the '80s that has ever since been remembered as one of the most important, impactful, and influential works in the history of comic books. Damon Lindelof's HBO miniseries of the same title was devised as a sequel to the source material, and though divisive, there are those who would confidently call it one of the best sci-fi miniseries of all time.

Many sci-fi purists hate referring to superhero media as science fiction, but with its remarkably strong elements of alternate-history tech, there's nothing that Watchmen could possibly be if not pure—and often downright genius—science fiction. Full of masterful performances and sharp deconstructions of the comics, offering hard-hitting social commentary on racial trauma and American identity, Watchmen achieves all of that in a mere nine episodes.

'Black Mirror' (2011–Present)

Considering that Black Mirror has been on the air for a whopping 15 years, by this point being one of the most tremendously iconic sci-fi series on the planet, makes it potentially surprising that it still hasn't hit the 40-episode mark. But, if anything, what this masterful anthology series loves to constantly prove is that quality beats quantity every single time.

That's what makes the 33-episode Black Mirror the perfect spiritual successor to The Twilight Zone, as well as one of the best sci-fi TV shows since 1990. Like any anthology series, not all of its episodes are great; but the ones that are great could be counted among the greatest episodes of any sci-fi anthology show in history: Smart, creative, impeccably written and directed, and full of powerful reflections on humanity's relationship with technology.

'Cowboy Bebop' (1998–1999)

Spike from Cowboy Bebop wearing a device on his back and staring ahead.

The influence and importance of Cowboy Bebop cannot be overstated, seeing as this late-'90s anime masterpiece greatly helped popularize anime television in the Western world during and after its run. To this day, it's still one of the most universally beloved anime TV shows in history, one of those anime classics where every episode is a masterpiece.

It's the sort of space Western and neo-noir gem whose creative ambition could have only possibly worked within the animated medium, making it a must-see for anyone who thinks of animation as a lesser form of science fiction. It's tonally complex, full of narrative charm and momentum, and driven by such compelling characters that the series still holds up even after several re-watches of its 26 episodes.

Collider Exclusive · Sci-Fi Personality Quiz Which Sci-Fi Hero Are You Most Like? Paul Atreides · Captain Kirk · Princess Leia · Ellen Ripley · Max Rockatansky

Five iconic heroes. Five completely different ways of facing an impossible universe. One of them shares your instincts, your values, and your particular way of refusing to back down. Eight questions will tell you which one.

🏜️Paul Atreides

🖖Capt. Kirk

✊Princess Leia

🔦Ellen Ripley

🔥Max Rockatansky

FIND YOUR HERO →

How do you lead when the stakes couldn't be higher? The way you lead under pressure is the most honest thing about you.

AI absorb everything — every variable, every pattern — and move only when I know the path forward. BI read the room, make the call, and own the consequences. Hesitation costs more than mistakes. CI rally people. A cause needs a voice, and I refuse to let fear be louder than conviction. DI assess the threat, establish what needs doing, and get it done without waiting for permission. EI don't lead. I act. Others can follow or not — I'm already moving.

NEXT QUESTION →

What is your greatest strength in a crisis? The quality that keeps you alive when everything else fails.

APrescience — the ability to see further ahead than anyone else and plan accordingly. BImprovisation — I'm at my best when the plan falls apart and I have to invent a new one. CConviction — I know what I'm fighting for, and that certainty doesn't waver under fire. DComposure — I stay functional when everyone around me is falling apart. Panic is a luxury. EEndurance — I outlast things. I take the hit and keep moving long after others have stopped.

NEXT QUESTION →

What is the thing you'd sacrifice everything else for? Your deepest motivation is your truest compass.

AThe survival and dignity of my people — even if I have to become something frightening to ensure it. BThe safety of my crew — every single one of them. No one gets left behind. CFreedom — for my people, for every world still crushed under the weight of an empire. DThe truth — what actually happened, what's actually out there, whether anyone believes me or not. EThe one person — or the one memory — that still makes any of this worth surviving for.

NEXT QUESTION →

How do you relate to the people around you? Who you are to others under pressure is who you really are.

AWith intensity and distance — I care deeply, but the weight I carry makes closeness complicated. BWith warmth and irreverence — I take the mission seriously, not myself. CWith directness and trust — I say what I mean, and I expect the people I work with to rise to it. DWith professional care but clear limits — I'll protect you, but I won't pretend we're family. EWith wariness that slowly becomes loyalty — I don't trust easily, but when I do, it holds.

NEXT QUESTION →

You're facing a threat that no one else believes is real. What do you do? How you respond when you're the only one who sees it defines everything.

APrepare in silence. If they won't listen, I'll be ready when they finally have to. BKeep pushing until someone listens — and if no one does, handle it myself. CBuild the case, find the allies, and make the threat impossible to ignore. DDocument everything. The truth matters even if no one believes it yet. EStop trying to convince anyone. Survive it. That's the only argument that counts.

NEXT QUESTION →

What has your heroism cost you personally? Every hero pays. The question is what — and whether they'd pay it again.

AMy innocence — I've seen what I'm capable of, and I can't unsee it. BPeople I loved — the command chair has a view, but it's a lonely one. CA normal life — I gave up everything ordinary the moment I chose the cause. DMy sense of safety — I know exactly what's out there now, and I can't pretend otherwise. EAlmost everything — and I'm still not sure what I'm carrying it all for. But I keep going.

NEXT QUESTION →

How do you feel about the rules of the world you're in? Every hero has a relationship with the system. What's yours?

AI understand them deeply — and I know exactly which ones must be broken, and why. BI respect the spirit of them and bend the letter when the situation demands it. CThe system is the problem. I'm not here to work within it — I'm here to dismantle it. DI follow protocol until protocol stops being useful. Then I make the call myself. EThe rules collapsed a long time ago. What's left is instinct, and mine are reliable.

NEXT QUESTION →

When everything is on the line, what keeps you going? The answer is the most honest thing about you.

ADestiny — or something that feels so much like it that the difference no longer matters. BThe people on my ship — their faces, their trust, the fact that they're counting on me. CThe belief that what we're fighting for is worth every sacrifice, including this one. DSheer refusal to let it win — whatever it is. I don't stop. That's just who I am. EI'm not sure anymore. But the road is still there, and I'm still on it.

REVEAL MY HERO →

Your Hero Has Been Identified Your Sci-Fi Hero Is…

Your answers point to the iconic sci-fi hero who shares your instincts, your values, and your particular way of facing the impossible.

Paul Atreides

You carry a weight most people would crumble under — the knowledge of what you're capable of, and the burden of what you might have to become.

You see further ahead than others and you plan accordingly, even when the vision frightens you.
You are driven by loyalty to your people and a sense of destiny you didn't ask for but can't escape.
Paul Atreides is not simply a hero — he is someone who understands the cost of power and chooses to bear it anyway.
That gravity, that willingness to carry what others won't, is exactly you.

Captain Kirk

You lead with instinct, warmth, and an absolute refusal to accept a no-win scenario — because you've always believed there's a third option nobody else has thought of yet.

You take the mission seriously without ever taking yourself too seriously.
Your crew would follow you anywhere, not because you demand it, but because you've earned it.
Kirk's genius isn't tactical — it's human. He reads people, bends rules with purpose, and wills outcomes into existence through sheer conviction.
That combination of warmth, audacity, and relentless optimism is unmistakably yours.

Princess Leia

You are the kind of person who holds the line when everyone else is losing faith — not because you're fearless, but because giving up simply isn't something you're capable of.

You lead through conviction. Your voice carries because your belief is unshakeable.
You gave up everything ordinary the moment you chose the cause, and you've never looked back.
Leia is not a supporting character in her own story — she is the moral centre of the entire rebellion.
That same fierce, principled, unbreakable core is what defines you.

Ellen Ripley

You are not reckless, not grandiose, and not particularly interested in being anyone's hero — you just refuse to stop when it matters.

You see threats clearly, you document the truth even when no one listens, and when the time comes you handle it yourself.
Ripley's heroism is earned, not performed. She doesn't have a speech — she has a flamethrower and a plan.
You share her composure under the worst possible pressure, and her refusal to pretend the monster isn't there.
When it counts, you don't flinch. That's everything.

Max Rockatansky

You have been through fire that would break most people — and what came out the other side is something the world underestimates at its peril.

You don't ask for help, don't need validation, and don't wait for anyone to tell you the rules no longer apply.
Your loyalty, when it finally arrives, is absolute — but it's earned in silence and tested in action, not in words.
Max is not a nihilist. He is someone who lost everything and found, against his will, that he still has something worth protecting.
That bruised, stubborn, ultimately human core is exactly yours.

↻ RETAKE THE QUIZ

'Firefly' (2002–2003)

Alan Tudyk, Nathan Fillion, and Gina Torres staring at something in the ship in Serenity

History has rarely—if ever—seen a more notorious case of a sci-fi masterpiece that was canceled well before its time than Firefly, one of the most perfect sci-fi shows of the last 25 years. Though it only graced the small screen for a single season, this action-packed space Western has nevertheless gone down in history as one of the most beloved and acclaimed sci-fi TV shows in history.

After all, what's not to love about such a fascinating space opera whose 14 episodes one could easily watch over the course of a single weekend? Its genre-blending atmosphere is nothing if not enrapturing, its wide ensemble of colorful characters never ceases to be compelling, and the tremendous cast playing those characters is composed of stars each delivering some of the best work of their careers.

'The Leftovers' (2014–2017)

Back in the day, many people looked down on science fiction as some sort of "low-brow" genre. Today, many years after those days came to an end, HBO has proven time and time again over the years that prestige television and science fiction go together like peanut butter and jelly. Case in point: The Leftovers, one of the network's best genre shows to date.

The Leftovers' status as a sci-fi show is by no means undisputed, but many fans consider the unexplained mystery that drives its narrative to make it a very soft kind of sci-fi series. Regardless, one thing that's not often debated against is that The Leftovers is an emotionally riveting, thematically profound, and artistically-driven masterpiece, undoubtedly one of the best TV shows since 2010 in spite (or perhaps partly because) of its only being 28 episodes long.

'Severance' (2022–Present)

Apple TV joined the streaming game relatively late, but they have already proven many a time—with masterpieces of the caliber of Severance—that they're producing some of the greatest shows currently airing. Part workplace satire, part sci-fi drama, this surrealist mystery box gem is one of the greatest genre shows that currently serve as the pillars of contemporary sci-fi pop culture.

Often, Severance is downright genius, bringing up at least a couple of new gripping mysteries for every question that it decides to satisfyingly answer. But far from being the only factor that makes it one of the most perfect thriller shows of the last 30 years, that faultless sense of mystery is the cherry on top of a tightly-plotted narrative, exceptionally engaging character development, great performances, and top-tier production values. It won't be composed of only 19 episodes for too much longer, but for now, it's one of the best shows to binge-watch in a single week.

'Andor' (2022–2025)

Cassian Andor (Diego Luna), sporting a beard and heavy jacket, walking the streets of Ferrix in Andor.

Sci-fi shows without any flaws are remarkably rare, but saying that Andor is one of those shows isn't an exaggeration in the slightest. Indeed, few people expected a prequel spin-off show based on a prequel spin-off movie to be a particularly special piece of Star Wars media, but in the end, not only did Andor prove to be special — it may very well be the best piece of canon media that the galaxy far, far away has seen since the '80s.

From action, to adventure, to complex character work, to deeply layered thematic critiques of authoritarian abuse and fascism, there's something across Andor's 24 episodes for pretty much any and all kinds of science fiction television fans. It's a grand and exciting space epic, but also a surprisingly profound character piece whose celebration of rebellion in the face of oppression is as timely as it is riveting.

'The Prisoner' (1967–1968)

Patrick McGoohan created and starred in the British sci-fi classic The Prisoner, on top of directing a few episodes. Over five decades after its conclusion, this paragon of British science fiction can be considered one of those near-perfect sci-fi shows nobody remembers anymore, but that should change. After all, even today, there are few sci-fi masterpieces of the level of quality of this countercultural gem.

The Prisoner grows darker, more complex, more Kafkaesque, and more unapologetically surrealist as it goes on, which is perhaps one of the reasons why it has remained so niche for so long. It's also the main source of its timeless charm, however, and it's stunning that it achieves such a level of artistic layeredness over the course of just 17 masterful episodes.

'Dark' (2017–2020)

Louis Hofmann as Jonas Kahnwald in the woods in 'Dark'

Netflix's first attempt at a German-language original series was Dark, and it's nothing if not admirable that they hit the jackpot on their first go. Indeed, this German masterpiece is widely remembered as one of the greatest multiverse and time travel sci-fi shows of all time, let alone of the 21st century. It's the sort of show so complex and mind-bending that it almost demands keeping a notebook by one's side in order to fully understand and appreciate, but all that mental effort is oh so worth it.

Indeed, Dark may be intellectually challenging, but it rewards patient and attentive viewers with a riveting story about deeply philosophical and existentialist questions about family, fate, and the human condition. It's the sort of thriller that grows more intense with every episode, and it's so tightly paced and intricately plotted that it achieves that level of perfection with just 26 episodes, all of which are of the highest quality.