Sci Fi TV Premieres for December 2025: Fallout S2, Stranger Things S5 Vol 2, Percy Jackson and the Olympians S2, and More

Sci Fi TV Premieres: Here is a rundown of all the new and returning sci fi and fantasy TV shows that will have a premiere in the current month. This information is based on premieres announced at the time of this posting (though check back for updates) and will include trailers if available. Note that premiere dates and times can change with little or no notice.

December is a bit more active than last month with six premieres as well as with the arrival of the second part of Stranger Things Season 5.  Along with that one, other big-name shows include Fallout (returning for its second season on Prime Video) and Percy Jackson and the Olympians (returning for its second season on Disney+).  The fan-favorite Record of Raganarok finally returns with its third season on Netflix, and one more animated entry from that streamer wraps as Tomb Raider: The Legend of Lara Croft releases its second and final season.  Peacock has the only new series on the schedule for December thus far with The Copenhagen Test, which is more of a spy thriller, but it does have some genre elements.  And the second season of the supernatural drama Sanctuary: A Witch’s Tale has its premiere on AMC+/Sundance Now on Christmas Day.  More shows could be added to the schedule in the next week or more, so keep an eye on our Sci Fi TV Premieres page and our Sci Fi TV Schedule for updates.

Percy Jackson and the Olympians Season 2


Percy Jackson and the Olympians, Season 2 December 10th, Disney+: Percy Jackson returns to Camp Half-Blood one year later to find his world turned upside down. His friendship with Annabeth is changing, he learns he has a cyclops for a brother, Grover has gone missing, and camp is under siege from the forces of Kronos. Percy’s journey to set things right will take him off the map and into the deadly Sea of Monsters, where a secret fate awaits the son of Poseidon. The first two episodes will be available on December 10th, with one per week releasing after that.

Record of Ragnarok Season 3


Record of Ragnarok, Season 3 December 10th, Netflix: Witness the fateful seventh fight to break the 3-3 tie in Ragnarok: the final battle between the gods and humans. Blood flows and fists fly in these intense battles of strong convictions! All episodes will be available on December 10th.

Tomb Raider: The Legend of Lara Croft Season 2


Tomb Raider: The Legend of Lara Croft, Season 2 December 11th, Netflix: Thrust into a high-stakes chase around the world, fearless adventurer Lara Croft confronts her traumatic past while unraveling an ancient mystery. All episodes will be available on December 11th.

Fallout Season 2


Fallout, Season 2 December 17th, Prime Video: The new season will pick up in the aftermath of Season One’s epic finale and take audiences along for a journey through the wasteland of the Mojave to the post-apocalyptic city of New Vegas. The first episode will be available December 17th, with one per week releasing after that.

Sanctuary: A Witch’s Tale Season 2


Sanctuary: A Witch’s Tale, Season 2 December 25th, AMC+/Sundance Now: Season two picks up a year after the traumatic events of season one. Sarah Fenn (Elaine Cassidy, The Wonder) and her daughter Harper are in hiding in Scotland, concealing Harper’s extraordinary powers, but a dark cloud is descending as recent anti-witch legislation has increased hate crimes. As Sarah worries worse is to come, she’s presented with a dramatic ultimatum – return to Sanctuary as the secret eyes and ears of the witch ruling body, The Moot, or have her magic bound. Determined to retain her powers and protect Harper at all costs, Sarah returns home just as a mysterious murder takes place, also drawing DCI Maggie Knight back to Sanctuary. The first two episodes will be available on will be available December 25th, with one per week releasing after that.

Stranger Things Season 5 Vol. 2

Stranger Things, Season 5 Vol. 2 December 25th, Netflix: Hawkins is scarred by the opening of the Rifts, and our heroes are united by a single goal: find and kill Vecna. But he has vanished — his whereabouts and plans unknown. Complicating their mission, the government has placed the town under military quarantine and intensified its hunt for Eleven, forcing her back into hiding. As the anniversary of Will’s disappearance approaches, so does a heavy, familiar dread. The final battle is looming — and with it, a darkness more powerful and more deadly than anything they’ve faced before. To end this nightmare, they’ll need everyone — the full party — standing together, one last time. Episode 5 thru 7 will be available on December 25th.

The Copenhagen Test NEW SERIES


The Copenhagen Text, NEW SERIES December 27th, Peacock: This espionage thriller series follows first-generation Chinese-American intelligence analyst Alexander Hale (Simu Liu) who realizes his brain has been hacked, giving the perpetrators access to everything he sees and hears. Caught between his shadowy agency and the unknown hackers, he must maintain a performance 24/7 to flush out who’s responsible and prove where his allegiance lies. All episodes will be available on December 27th.

Stranger Things Season 2 Finale

When will the Stranger Things finale be available for streaming?

Stranger Things, Season 5 Finale December 31st, Netflix: The final episode of this series will be available on this day.

January Preview:

Primal (Adult Swim) Season 2 Premieres Jan 11
Starfleet Academy (Paramount+) NEW SERIES Premieres Jan 15
A Knight of the Seven Kingdoms (HBO) NEW SERIES Premieres Jan 18
Wonder Man (Disney+) NEW SERIES Premieres Jan 27

For all of the current and upcoming premiere dates, go to this link, and for the current schedule, go to this link.



Keep up with the status of all the current sci fi and fantasy shows as well as news and updates on new and upcoming shows at CancelledSciFi.com.

Cancellation Watch: Status updates and breaking news on renewals and cancellations

Sci Fi TV Highlights: Listings for the upcoming week along with the latest sci fi TV news and trailers.

Sci Fi TV Production Report: News on which sci fi TV shows are moving into production.

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Author: johnnyjay

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