8 Sci-Fi Shows With No Weak Episodes

Image via Syfy Published Sep 6, 2026, 9:59 AM EDT Diego Pineda has been a devout storyteller his whole life. He has self-published a fantasy novel and a book of short stories, and is actively working on publishing his second novel. A lifelong fan of watching movies and talking about them endlessly, he writes reviews and analyses on his Instagram page dedicated to cinema, and occasionally on his blog. His favorite filmmakers are Andrei Tarkovsky and Charlie Chaplin. He loves modern Mexican cinema and thinks it's tragically underappreciated. Other interests of Diego's include reading, gaming, roller coasters, writing reviews on his Letterboxd account (username: DPP_reviews), and going down rabbit holes of whatever topic he's interested in at any given point. Sign in to your Collider account It's rare enough to encounter a science fiction TV show that's truly great, and even rarer to find one that, on the whole, deserves to be called "perfect." To find a sci-fi series that doesn't have a single bad episode, however? Now that is a precious occasion that only comes along once in a blue moon. However, there definitely are eight particularly noteworthy sci-fi gems whose every episode is, at the very least, solid. From criminally underappreciated masterpieces like Travelers to universally beloved shows like The Expanse, these are science fiction shows that every single fan of the genre should watch at least once in their lives. In order to qualify for this list, a show must have already come to an end, which makes it all the more admirable that, from pilot to series finale, these shows managed to never fall into a single pitfall episode. 8 'Travelers' (2016–2018) Image via Netflix The Canadian-American series Travelers is one of those rare sci-fi shows that get time travel right, grounding a hugely ambitious sci-fi premise in a deeply emotional and character-driven story. Whereas many time travel series end up falling victim to their own ambition and falling into several irreconcilable paradoxes and plot holes, that was never the case with Travelers. It was such an intelligently written and carefully-planned-out show that it always steered clear of the genre's usual faults. Many sci-fi shows end up either overstaying their welcome or getting canceled so abruptly that they can never be fully satisfying, but not Travelers. We're talking about three airtight seasons that tell a cohesive story with an entirely satisfying conclusion, and through it all, the pacing remains so perfect and the stakes so high that the show never ceases to be absolutely engrossing. 7 'Counterpart' (2017–2019) Image via Starz While it's true that most of history's best sci-fi shows end up receiving just as much praise as they deserve, there have definitely been plenty of awfully underappreciated ones over the years—which definitely includes the spy conspiracy thriller Counterpart. It's one of those forgotten thriller shows that are nearly perfect, starring J. K. Simmons in a dual role where he offers one of the strongest performances of his entire career. Where can one even begin singing the praises of a show as exceptional as Counterpart? With its well-deserved 100% rating on Rotten Tomatoes, this irresistibly gripping series blends the gritty elements of a Cold War-era spy and political thriller with a thought-provoking exploration of themes like identity and determinism achieved through its clever sci-fi elements. Tightly written so that its dense narrative is never overwhelming, it really is essential viewing for anyone who loves underrated sci-fi shows. 6 '12 Monkeys' (2015–2018) Image via Syfy Back in 1995, Terry Gilliam of Monty Python fame directed Twelve Monkeys, one of the greatest and most beloved sci-fi cult classics of the '90s as a whole. Though based on the film, Syfy's 12 Monkeys quickly established itself as a time travel story all of its own, yet another of the smartest and most unique time travel TV shows out there. We're talking about one of the most perfect four-season shows of all time, and the fact that not one of its nearly 50 episodes is anything less than fantastic is almost jaw-dropping. Unlike many sci-fi TV shows, including some of the greatest in history, 12 Monkeys doesn't really feature many episodic case-of-the-week elements. Rather, it was meticulously plotted from the very start, allowing for perfectly tight rules of time travel and a story as consistently emotional as it is consistently intelligent. The series doesn't lose any of its momentum or even lower the stakes at any point during its run, making it one of the most perfect sci-fi shows of the 2010s. 5 'Andor' (2022–2025) Image via Disney+ There are some truly perfect sci-fi shows shorter than five seasons out there, and Andor is undoubtedly among them. The best piece of Star Wars content since the '80s, this absolute masterpiece of a sci-fi thriller proved that not only could the galaxy far, far away produce some exceptional live-action TV shows, it could even bring the whole franchise back to its thematic roots. Indeed, Andor—much like George Lucas' original trilogy—is a scathing critique of authoritarian abuse and a celebration of rebellion in the face of tyranny and fascism, themes that are as timely as they are thought-provoking. Add to that some of the best production values that sci-fi television has seen in years, surprisingly deep and nuanced writing, and incredible acting, and you get a series that's entirely deserving of being counted among the greatest sci-fi shows the small screen has ever seen. Collider Exclusive · Sci-Fi Survival Quiz Which Sci-Fi World Would You Survive? The Matrix · Mad Max · Blade Runner · Dune · Star Wars Five universes. Five completely different ways the future went wrong — or sideways, or up in flames. Only one of them is the world your instincts were built for. Eight questions will figure out which dystopia, galaxy, or desert wasteland you'd actually make it out of alive. 💊The Matrix 🔥Mad Max 🌧️Blade Runner 🏜️Dune 🚀Star Wars TEST YOUR SURVIVAL → 01 You sense something is deeply wrong with the world around you. What do you do? The first instinct is often the truest one. APull on every thread until I understand the system — then figure out how to break it. BStop asking questions and start stockpiling — food, fuel, weapons. Questions don't keep you alive. CKeep my head down, observe carefully, and trust no one until I know who's pulling the strings. DStudy the patterns. Every system has a rhythm — learn it, and you learn how to survive it. EFind the people fighting back and join them. You can't fix a broken galaxy alone. NEXT QUESTION → 02 In a world of scarcity, what resource do you guard most fiercely? What we protect reveals what we believe survival actually requires. AKnowledge. If you understand the system, you don't need resources — you can generate them. BFuel. Everything else — movement, power, escape — runs on it. CTrust. In a world of fakes and informants, a truly reliable ally is rarer than any commodity. DWater. And after water, information — the two things empires are truly built on. EShips and credits. The galaxy is big — you survive it by being able to move through it freely. NEXT QUESTION → 03 What kind of threat keeps you up at night? Fear is useful data — if you're honest about what you're actually afraid of. AThat reality itself is a lie — that everything I experience has been constructed to keep me compliant. BA raid. No warning, no mercy — just the roar of engines and then nothing left. CBeing identified. Once someone with power decides you're a problem, you're already out of time. DBeing outmanoeuvred — losing a political game I didn't even know I was playing. EThe Empire tightening its grip until there's nowhere left to run. NEXT QUESTION → 04 How do you deal with authority you don't trust? Every dystopia has a power structure. Your approach to it determines everything. ASubvert it from the inside — learn its rules well enough to weaponise them against it. BIgnore it and stay out of its reach. The further from any power structure, the better. CAppear to comply while doing exactly what I need to do. Visibility is the enemy. DManoeuvre within it carefully. You can't beat a system you refuse to understand. EResist openly when I have to. Some things are worth the risk of being seen. NEXT QUESTION → 05 Which environment could you actually endure long-term? Survival isn't just tactical — it's physical, psychological, and very much about where you are. AUnderground bunkers and server rooms — cramped, artificial, but with access to everything that matters. BOpen wasteland — brutal sun, no shelter, constant movement. At least the threat is honest. CA dense, rain-soaked city where you can disappear into the crowd and nobody asks questions. DMerciless desert — extreme heat, no water, and something enormous living beneath the sand. EThe fringe — backwater planets and busy spaceports where the Empire's attention rarely reaches. NEXT QUESTION → 06 Who do you want in your corner when things fall apart? The company you keep is the clearest signal of who you actually are. AA tight crew of believers who've seen behind the curtain and have nothing left to lose. BOne or two people I'd trust with my life. Any more than that and someone talks. CNobody, ideally. Alliances are liabilities. I work alone unless I have no choice. DA community bound by shared hardship and mutual survival — people who need each other to last. EA ragtag team with wildly different skills and total commitment when it counts. NEXT QUESTION → 07 Where do you draw the line — if you draw one at all? Every survivor eventually faces a moment that tests what they're actually made of. AI won't harm the innocent — even the ones who'd report me without hesitation. BI do what I have to to protect the people I've chosen. Everything else is negotiable. CThe line shifts depending on who's asking and what's at stake. DI draw a long-term line — nothing that compromises my people's future, even if it'd help now. ESome lines, once crossed, can't be uncrossed. I know which ones they are. NEXT QUESTION → 08 What would actually make survival worth it? Staying alive is one thing. Having a reason to is another. AWaking others up — dismantling the illusion so no one else has to live inside it. BFinding somewhere — or someone — worth protecting. A reason to keep moving. CAnswers. Understanding what I am, what any of this means, before time runs out. DLegacy — shaping the future in a way that outlasts me by generations. EFreedom — for myself, for others, for every world still living under someone else's boot. REVEAL MY WORLD → Your Fate Has Been Calculated You'd Survive In…Your answers point to the world your instincts were built for. This is the universe your temperament, your survival instincts, and your particular brand of stubbornness were made for. The MatrixYou took the red pill a long time ago — probably before anyone offered it to you. You're a systems thinker who can't help but notice the seams in things. You're drawn to understanding how the system works before figuring out how to break it. You'd find the Resistance, or it would find you — your instinct for spotting constructed realities is the machines' worst nightmare. You function best when you have access to information and the freedom to act on it. The Matrix built an airtight prison. You'd be the one probing the walls for the door. Mad MaxThe wasteland doesn't reward the clever or the well-connected — it rewards those who are hard to kill and harder to break. That's you. You don't need comfort, community, or a cause larger than the next horizon. You need a vehicle, a clear threat, and enough fuel to outrun it — and you're good at all three. You are unsentimental enough to survive that world, and decent enough — just barely — to be something more than another raider. In the wasteland, that distinction is everything. Blade RunnerYou'd survive here because you know how to exist in moral grey areas without losing yourself completely. You read people accurately, keep your circle small, and ask the questions others prefer not to answer. In a city where humanity is a legal designation rather than a feeling, you hold onto something that keeps you functional. You're not a hero. But you're not lost, either. In Blade Runner's world, that distinction is everything. DuneArrakis is the most hostile environment in the known universe — and you are precisely the kind of person it rewards. Patience, discipline, and political awareness are your core strengths — and on Arrakis, they're survival tools. You understand that the long game matters more than any single victory. Others come to Dune and are consumed by it. You'd learn its logic and earn its respect. In time, you wouldn't just survive Arrakis — you'd begin to reshape it. Star WarsThe galaxy far, far away is vast, loud, and in a constant state of violent political upheaval — and you wouldn't have it any other way. You find meaning in being part of something larger than yourself — a cause, a crew, a rebellion. You'd gravitate toward the Rebellion, or the fringes, or whatever pocket of the galaxy still believes the Empire's grip can be broken. You fight — not because you have to, but because standing aside isn't something you're capable of. In Star Wars, that willingness is what makes all the difference. ↻ RETAKE THE QUIZ 4 'Scavengers Reign' (2023) Image via HBO Max Out there, there are plenty of incredible yet overlooked animated shows that deserve your attention, one of the best and most essential among them being the jaw-dropping space adventure Scavengers Reign. Though it's an absolute tragedy that it was canceled before its second season entered production, the series was originally pitched as a self-contained miniseries anyway. As such, though it's frustrating that it wasn't allowed to flourish as it deserved, it's still an entirely satisfying experience from beginning to end. We're talking about 12 episodes that feature some of the strongest and most profound world-building, character development, and slow-burning storytelling that the sci-fi genre has ever seen on television. It's an emotionally riveting experience, but what really makes it stand out as something entirely unique is the sheer depth, scale, and complexity of its alien environment. It would have been delightful to see where its creators took things going forward, but even with just its single season, Scavengers Reign is nothing short of flawless. 3 'The Expanse' (2015–2022) Image via SYFY Based on the incredible series of novels by James S. A. Corey (the pen name of Daniel Abraham and Ty Franck), The Expanse is widely praised as one of the most scientifically accurate sci-fi TV shows ever made. Fittingly, much like its source material, which is one of the best series of sci-fi novels the world has ever seen, The Expanse also happens to be one of the best-regarded space operas in television history. Bold, ambitious, and almost perfectly written, it truly is one of the best sci-fi TV shows since 2000. With its spanning 62 episodes over the course of six incredible seasons, it's stunning that The Expanse was able to remain so consistently high-quality for as long as it did—even after being canceled by Syfy and revived by Prime Video. Most sci-fi shows this long tend to have at least a couple of episodes that are, at best, mediocre, but not The Expanse. Even with its first season being a bit too slow and mostly focused on world-building, the whole thing offered banger episode after banger episode throughout eight amazing years of pure televisual sci-fi bliss. 2 'Firefly' (2002–2003) Image via 20th Century Fox Getting into a new sci-fi show is often quite a substantial commitment, seeing as it's a genre that often lends itself to timeless series that run for multiple seasons. Those looking for a perfect sci-fi show shorter than 20 episodes, however, ought to watch Firefly, perhaps the most infamous instance of a phenomenal sci-fi series that was canceled before its time. But though it only ran for one season, Firefly is nevertheless one of the most universally acclaimed sci-fi shows of all time. What's not to love about a space Western that has such charming production values (including special effects that have aged wonderfully), such compelling character development, and such an amazing cast ensemble? Firefly really is one of the most legendary space opera TV series of the 21st century, a cult classic soon to get a long-overdue animated continuation which simply can't come soon enough. Sure, it only has 14 episodes, but that doesn't make the fact that each of them is downright perfect any less admirable. 1 'Dark' (2017–2020) Image via Netflix Dark is probably not the best show for people who prefer sci-fi that doesn't squeeze every last drop of attention out of their brain, but for fans of the genre who love thought-provoking shows, it's a must-see. Yes, it's a difficult series to follow and keep track of over the course of its three amazing seasons, but it's worth every last bit of effort. After all, this time travel and multiversal sci-fi gem is an even more perfect series than most people tend to give it credit for. One of the thriller shows with the most perfect endings, Dark's whole enrapturing arc was carefully and tightly planned out from the start, with the writers only adjusting a few key details as they went along. You can definitely tell, seeing as Dark is one of the most powerfully layered and thoroughly satisfying shows that the sci-fi genre has ever produced. It certainly demands one's full and undivided attention, but sci-fi fans willing to grant it that are in for the ride of a lifetime, without ever having to run into a single episode that's anything less than exceptional. Dark Release Date 2017 - 2020-00-00 Network Netflix Cast Louis Hofmann Jonas Kahnwald Lisa Vicari Martha Nielsen