Best science fiction TV series finales

This finale is celebrated for its emotional depth and seamless integration into the broader Star Wars saga, bringing the stories of Ahsoka, Rex, and Maul to a heartbreaking close. It's widely considered one of the greatest animated Star Wars episodes and a perfect conclusion to the series.

This two-part finale provides a comprehensive resolution to its complex time-travel narrative, tying up all loose ends and offering a bittersweet yet hopeful conclusion. It's praised for being a rare time-travel finale that is both airtight and heartfelt.

This finale offers a masterpiece of quiet sci-fi, providing an ambiguous yet deeply moving conclusion that focuses on the connection between Nora and Kevin. Its ambiguous nature allows it to linger with viewers for years, making it a unique and profoundly impactful sci-fi ending.

This finale masterfully resolves the complex, multi-generational time-travel narrative, breaking the cycle of paradoxes in a poetic and deeply satisfying way. 'Dark' is frequently cited for its intricate plotting and its ability to deliver a conclusive yet emotionally resonant ending.

This finale provides a galaxy-spanning resolution to the series' political and human conflicts, maintaining its crucial human center while delivering exciting and emotional character moments. It's lauded for bringing the show to an amazing close, offering a satisfying conclusion to one of the most scientifically accurate sci-fi shows.

This two-part episode is widely regarded as the 'gold standard' for sci-fi series finales, skillfully combining time travel with philosophical themes. It offers a nostalgic, emotional, and deeply clever conclusion that perfectly encapsulates the spirit of 'Star Trek'.

This finale is celebrated for its profound emotional impact and for honoring everything the series stood for, providing a definitive yet bittersweet closure. Set 20 years after the main events, it offers a quiet, reflective, and emotionally powerful meditation on friendship, legacy, and the end of an era.

The finale successfully concludes a series that evolved from a procedural to a complex multiverse saga and dystopian war story, delivering a satisfying and emotional resolution. It's praised for celebrating the show's best elements and providing a fitting end to its unique blend of science fiction and character drama.

This cyber-thriller's conclusion brings the story full-circle, delivering a top-notch ending that is both satisfying and capable of leaving viewers speechless. 'Person of Interest' maintained high quality throughout its run, and its finale is highlighted for its ability to provide a strong, conclusive ending to its complex narrative.

This three-part finale is fiercely debated but widely considered a bravura conclusion that provides thematic resolution and a sense of having traveled somewhere significant. It concludes the human and Cylon survivors' journey, leading them to a new Earth and a decision to abandon technology.

This finale bridges the gap between 'The Clone Wars' and 'A New Hope', featuring Ezra Bridger's bold sacrifice and providing a sense of closure that also felt like the beginning of a new chapter. It's praised for carving out its own place in the Star Wars universe and for its clever and impactful ending.

This finale offers a tragic, hopeful, and ambitious conclusion that balances closure with possibility, as Grant sends his consciousness back to reset the future. It's considered a rare example that works both as a satisfying ending and a soft reboot, allowing fans to imagine the story continuing.

This anime series, based on the 'Cyberpunk 2077' video game, delivers a critically acclaimed and emotionally impactful ending to its standalone story. It's recognized for its satisfying conclusion within the sci-fi genre, particularly for its strong narrative and character development.