Where to Watch <i>Good Omens</i>, <i>Mercy</i>, and the Best Sci-Fi and Fantasy on Prime Video

Where to Watch Good Omens, Mercy, and the Best Sci-Fi and Fantasy on Prime Video

Quick answer: "Good Omens", "Mercy", "The Peripheral", and "The Power" are all available to watch exclusively on Prime Video. Every sci-fi and fantasy title featured in this guide is included with your Prime membership at no extra cost, ready to stream right now.

But those four are really just the starting point. Prime Video has built one of the strongest sci-fi and fantasy catalogues in streaming, covering everything from apocalyptic comedies and dystopian thrillers to mind-bending near-future dramas and genre-defying experiments that challenge what science fiction can be. Whether you are after something to make you question reality on the sofa or a gripping, bingeable series to lose yourself in, this guide covers the best sci-fi and fantasy available on Prime Video right now, with everything you need to know about each one before you press play.

Good Omens

"Good Omens" is the apocalyptic comedy that proves the end of the world can be absolutely delightful. Based on the beloved novel by Terry Pratchett and Neil Gaiman, the series follows Aziraphale and Crowley, an angel and a demon who have grown rather fond of Earth over their 6,000 years stationed here. So it is terrible news that Armageddon is scheduled to arrive right on time. The armies of Good and Evil are amassing. The Four Horsemen are ready to ride. Everything is going according to the Divine Plan, except that someone seems to have misplaced the Antichrist. Can our heroes find him and stop the apocalypse before it is too late?

What makes "Good Omens" extraordinary is the chemistry between Michael Sheen and David Tennant, who bring Aziraphale and Crowley to life with such warmth, wit, and genuine affection that you cannot help but root for their unlikely partnership. The series balances laugh-out-loud comedy with surprisingly moving moments about friendship, loyalty, and what it means to choose your own side. Jon Hamm delivers a scene-stealing performance as the Archangel Gabriel, and the production design brings both Heaven and Hell to life with gloriously inventive detail.

The series holds a 4.8 out of 5 rating on Prime Video and an 8.0 out of 10 on IMDb. Three complete seasons are available to stream now, blending humorous and dramatic storytelling in a way that feels both epic and deeply personal.

Mercy

"Mercy" is a taut, high-stakes thriller set in the near future where artificial intelligence has transformed the justice system. Chris Pratt stars as a detective accused of murdering his wife, and he has exactly 90 minutes to prove his innocence to the advanced A.I. Judge he once championed before it determines his fate. What follows is a relentless race against time as he fights to expose the truth while the very system he helped create closes in around him.

The film explores urgent questions about technology, justice, and whether machines can truly understand human complexity. Rebecca Ferguson and Kali Reis deliver powerful supporting performances, and the tension never lets up across the film's brisk one hour and 39 minutes. It is suspenseful, thought-provoking, and uncomfortably relevant, asking what happens when we hand over our most human decisions to algorithms that cannot account for doubt, context, or mercy itself.

"Mercy" holds a 4.2 out of 5 rating on Prime Video and a 6.2 out of 10 on IMDb. Released in 2026, it is a gripping sci-fi drama that feels ripped from tomorrow's headlines.

The Peripheral

"The Peripheral" centres on Flynne Fisher, a woman trying to hold together the pieces of her broken family in a forgotten corner of tomorrow's America, where technology has started to subtly alter society. When she substitutes for her brother in a mysterious virtual reality game, she witnesses something she was never meant to see, and suddenly finds herself connected to a dark and dangerous future that may not be as virtual as it seems.

Created by the team behind "Westworld" and based on William Gibson's novel, the series is a brilliantly constructed puzzle box that rewards close attention. Chloë Grace Moretz anchors the show with a grounded, compelling performance, and the supporting cast, including Jack Reynor and Gary Carr, brings depth to a story that spans two timelines and asks profound questions about technology, power, and whether the future can be changed. The world-building is meticulous, the mystery is genuinely gripping, and the visual effects are stunning.

"The Peripheral" holds a 4.6 out of 5 rating on Prime Video and a 7.5 out of 10 on IMDb. One complete season is available to stream now, delivering intense, intelligent science fiction that lingers long after the final episode.

The Power

"The Power" is a global thriller based on Naomi Alderman's award-winning novel that asks a simple but explosive question: what if teenage girls suddenly developed the power to electrocute people at will? The world of "The Power" is our world, but for one twist of nature. What begins as a tingle in teenagers' collarbones evolves into a complete reversal of the power balance between men and women, and the series follows remarkable characters from London to Seattle, Nigeria to Eastern Europe as society is turned upside down.

Toni Collette, John Leguizamo, and Toheeb Jimoh lead an exceptional ensemble cast through a story that is part speculative fiction, part political thriller, and entirely gripping. The series does not shy away from difficult questions about power, violence, corruption, and whether oppressed people, once liberated, will choose justice or revenge. It is intense, thought-provoking, and uncomfortably relevant, using its high-concept premise to explore very real dynamics about gender, authority, and what happens when the rules change overnight.

"The Power" holds a 4.2 out of 5 rating on Prime Video and a 6.7 out of 10 on IMDb. One complete season is available to stream now, delivering suspenseful, intelligent science fiction that challenges and provokes in equal measure.

If You Liked These, Watch These

Looking for more? Here are the best next watches based on the titles in this guide, all available on Prime Video.

If you liked the near-future tension of "Mercy" or the time-bending complexity of "The Peripheral", try "The Tomorrow War" for a high-stakes sci-fi thriller where time travellers arrive from 2051 to deliver an urgent message: 30 years in the future, mankind is losing a war against a deadly alien species. Chris Pratt stars as a man determined to save the world for his daughter, teaming up with a brilliant scientist and his estranged father to rewrite the planet's fate. It is compelling, action-packed, and runs two hours and 11 minutes.

If you are after something that blends sci-fi with sharp storytelling and emotional depth, try "Invincible", an adult animated superhero series that revolves around 17-year-old Mark Grayson, who is just like every other guy his age, except his father is the most powerful superhero on the planet. But as Mark develops powers of his own, he discovers his father's legacy may not be as heroic as it seems. With five seasons available, it is intense, brilliantly animated, and holds an 8.7 out of 10 on IMDb.

How Can I Watch These Sci-Fi's on Prime Video?

Every title in this guide is available to stream on Prime Video. Simply open the Prime Video app on any supported device or visit the website, search for any title, and start watching. If you are not yet a Prime member, you can start with a 30-day free trial to explore the full catalogue.