9 Best Sci-Fi TV Shows You Can Stream Free Right Now

Pluto TV is a free streaming service owned by Paramount Streaming that offers a wide variety of content across different eras, genres, movies, and TV shows. This includes a selection of sci-fi and fantasy TV shows such as the sitcom ‘Alf’, ‘Charmed’, ‘RoboCop: The Series’, ‘The Greatest American Hero’, the 1958 series ‘The Invisible Man’, the British horror series ‘Ultraviolet’ with Idris Elba, Gene Roddenberry’s ‘Andromeda’, and the miniseries ‘Merlin’ starring Sam Neill. The occasional ads might seem like a minor inconvenience compared to the vast amount of entertainment Pluto TV provides.

The titles mentioned barely touch upon the finest science fiction series accessible on Pluto TV without charge, encompassing programs linked to beloved franchise favorites.

1) The Twilight Zone

The profound influence that Rod Serling’s innovative anthology series “The Twilight Zone” has exerted on film, television, genre conventions, popular culture, and its historical importance cannot be overestimated. Debuting in 1959 and lasting five seasons on CBS, the show was iconically led by its creator, Serling, who imbued the anthology with social critique. The narratives encompassed diverse genres, ranging from horror, science fiction, drama, fantasy, dystopian literature, dark comedy, psychological suspense, and more. To this day, “The Twilight Zone” remains a must-see for any fan of genre entertainment.

As a devoted cinephile, I’m thrilled to share that all five seasons of my beloved show are streamable on Pluto TV, which also boasts an entire channel dedicated to the timeless program. If you’re a fan of chilling anthology series, you might want to check out Mick Garris’ terrifying masterpiece, Masters of Horror, another gripping series available on their platform.

2) Stargate Atlantis

The initial Stargate SG-1 show (available on Pluto TV) continued the storyline from Roland Emmerich’s 1994 film Stargate, introducing a fresh cast and running for an impressive 10 seasons following its debut in 1997. This marked the beginning of the franchise’s major expansion, and in 2004, the Stargate universe expanded further with the popular spinoff series, Stargate: Atlantis. The show featured Joe Flanigan, Rachel Luttrell, David Hewlett, Torri Higginson, and Jason Momoa, who gained recognition for his breakout role as Ronon Dex.

Up for four Emmy awards, “Stargate: Atlantis” delves into the adventures of a fresh team of investigators, who delve into the mysteries surrounding the lost city of Atlantis in the Pegasus Galaxy. As time goes by, they become entangled in a conflict against the primary adversaries, the Wraith. Similar to “SG-1” and “Atlantis”, the 2009 spinoff series “Stargate Universe” can also be found on Pluto TV.

3) Farscape

1999 marked the premiere of “Farscape,” an innovative sci-fi journey, crafted by The Jim Henson Company. Its distinctive creature designs, prosthetics, and animatronic puppets gave it a unique edge among contemporary science fiction shows. Apart from its distinct style, action, and cast, viewers were captivated by the compelling performances of Ben Browder (later known for his role as Lt. Colonel Cameron Mitchell in Stargate) and Claudia Black. The intricate romantic saga between John Crichton and Aeryn Sun served as the backbone for a series that was both bizarrely captivating and unpredictable.

Written by Rockne S. O’Bannon, you can find all four seasons of “Farscape” on Pluto TV. Additionally, the miniseries continuation, titled “Farscape: The Peacekeeper Wars“, is also accessible for streaming on this platform.

4) Star Trek: The Next Generation

On Pluto TV, you’ll find a fundamental selection of Star Trek shows, including scattered seasons from The Original Series, Deep Space Nine, Voyager, and Enterprise. While personal preference might differ among fans when it comes to picking their favorite early installments, many believe that Star Trek: The Next Generation was the groundbreaking show that set the stage for the entire Star Trek universe.

In simpler terms, the award-winning TV show created by Gene Roddenberry boasted an exceptional ensemble headed by Patrick Stewart, captivating personalities, and consistently delivered well-crafted narratives during its entire duration.

5) The Outer Limits

Another well-known sci-fi anthology series, ‘The Outer Limits’, was produced by Leslie Stevens. Airing from 1963 to 1965 on ABC, the show bore a resemblance to ‘The Twilight Zone’ but with a stronger emphasis on science fiction and distinctive creature designs. It gained recognition for its eerie cold openings and the narration by the Control Voice, which introduced each episode with the phrase, “There is nothing wrong with your television set. Do not attempt to adjust the picture.” The opening sequence gave the impression that an external force was commandeering viewers’ TV sets.

In 1995, the classic series “The Outer Limits” was brought back to life, spanning over seven seasons with Kevin Conway as the narrator. You can catch both original runs of this show on Pluto TV currently.

6) Mork & Mindy

The TV series “Mork & Mindy” (aired from 1978 to 1982) was a well-liked science fiction sitcom featuring the late Robin Williams as Mork, an alien character, and Pam Dawber as his human companion and roommate Mindy. Prior to starring in this show, Williams played Mork for the first time on “Happy Days,” eventually earning his own television series following his impressive performance in this breakout role. Throughout the series, Mork endeavored to grasp human behavior and life on Earth, resulting in amusing antics and insights from an alien perspective. In 1979, Williams received his initial Emmy nomination for Outstanding Lead Actor in a Comedy Series for his portrayal of Mork.

Every season of Mork & Mindy is available on Pluto TV.

7) Continuum

Originating from Simon Barry, “Continuum” was a Canadian science fiction action series that premiered in 2012. The show featured Rachel Nichols as Kiera Cameron, a character from the year 2077 who unintentionally got stuck in contemporary Vancouver alongside a gang of escaped criminals planning to rewrite history. Key relationships between Kiera, tech genius Alec Sadler (portrayed by Erik Knudsen), and Detective Carlos Fonnegra (Victor Webster) were a major draw and contributed to the series’ four-season run.

Every episode of Continuum is available to stream on Pluto TV.

8) Sanctuary

Following many years playing Samantha Carter in the Stargate universe, Amanda Tapping went on to portray Dr. Helen Magnus in Sanctuary. This forward-thinking show, created by Damian Kindler, revolved around advancements in human evolution through methods like cybernetic upgrades, gene treatments, and genetic manipulation. In this series, Tapping’s character is a 157-year-old teratologist who heads the Sanctuary, an organization aimed at finding and helping creatures and individuals referred to as Abnormals. However, some perceive these powerful beings as dangers and seek to turn public opinion against them.

During its 4-season broadcast (accessible on Pluto TV), the series titled “Sanctuary” offered a fresh, imaginative science fiction narrative filled with intriguing personas and intricate ideas – making it an ideal match for creator Moira Tapping.

9) Ultraman

In the ’60s era, the Japanese sci-fi series known as “Ultraman” emerged. The story revolved around a character named Hayata, who was part of the Science Patrol. This extraordinary fellow, played by Bin Furuya, held an incredible power – he could metamorphose into a colossal alien superhero called Ultraman. Ultraman, an extraterrestrial hailing from Nebula M78, had come to Earth in pursuit of a monstrous invader from space. When the series debuted in 1966, it spanned across 39 half-hour episodes, focusing on the Science Patrol and their efforts to protect our planet alongside Ultraman as they battled various perils.

The iconic Ultraman series garnered immense popularity in Japan and expanded into an expansive media empire, encompassing sequels, films, comics, and other ventures, significantly shaping Japanese pop culture. You can now stream all episodes of this legendary series on Pluto TV.

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2025-06-29 20:36