

Web series
Day One
The future is offline. Your survival starts now.
Barcelona, 2026. During Mobile World Congress week, Ulises Albet, a former tech prodigy turned anti-tech activist, becomes the prime suspect in a murder. As he escapes through a city under lockdown, he uncovers the imminent launch of a groundbreaking technology that could put humanity's ethical future at risk. To stop it, he must confront his past.
- Status
- Ended
- Type
- Miniseries
- Last aired
- 2026-03-13
- Language
- Spanish
Prime Video
Seasons
Top billed cast
















Behind the camera
Where to watch
All optionsAvailability for India. Provided by JustWatch through the TMDB API.
Gallery

Videos
Air dates
- First aired
- 2026-03-13
- Latest episode
- 2026-03-13
- Status
- Ended
- Next release
- Completed
- Season 113 Mar 2026
Frequently asked questions
Day One is streaming on Amazon Prime Video, Amazon Prime Video with Ads in India. Use the official Watch now links in the Where to watch section above.
Audience reviews
1- M7/10
MovieGuys
3/22/2026
"Day One" does a few things moderately well but remains a rather formulaic sci-fi crime thriller. If you were expecting anything novel or thought-provoking, you won't find much on offer from this Spanish series. It's a very mild cautionary tale about the risks associated with AI and big tech, but this is, at its core, a crime thriller. Predictably there's the usual woke content and a warning about how social m…
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