How many seasons does Day One have?

Day One has 1 season and 6 episodes.

Is Day One renewed or canceled?

Day One is currently returning. A premiere date has not been announced yet.

Where can I watch Day One?

Day One is available on Prime Video. You can stream it on Amazon Prime Video, Amazon Prime Video with Ads.

Day One

Name: Day One
Genre: Drama, Mystery
Released: 2026-03-13
Rating: 7.5
Cast: Álex González, Asier Etxeandia, Alba Planas, Jordi Mollà, Renata Notni

RETURNING1 Seasons6 Episodes★ 7.5

NetworkPrime Video

First AiredMar 13, 2026

Last AiredMar 13, 2026

GenreDrama, Mystery

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.

RENEWED

Day One has been renewed but a premiere date has not been announced yet. Track this show to get an alert when a date is confirmed.

WHERE TO WATCH

Amazon Prime Video

Amazon Prime Video with Ads

Data via JustWatch / TMDB

Cast

Álex González

Ulises Albet

Asier Etxeandia

Samuel Barrera

Alba Planas

Jordi Mollà

Renata Notni

Ivan Massagué

Mireia Oriol

Seasons & Episodes1 season · 6 episodes

0% complete

E1Episode 1

Mar 13, 202646m

After years in isolation, Ulises returns to Barcelona when his former partner asks for help decrypting Pandora, the code behind a revolutionary technology. The reunion ends in murder, turning Ulises into the main suspect. As a video of his escape goes viral, tech mogul Damián Diskin prepares to launch Day One, and Ulises realizes that nothing - not even his friend's death - is what it seems.

E2Episode 2

Mar 13, 202643m

With no trace of Pandora, Ulises turns to Paula, who shows him another video revealing the killer. The only person who can clear him is Rebeca, whose social media activity puts her in Diskin's sights. Determined to protect the launch of Day One, Diskin intervenes through the technology itself, erasing evidence and sending a mercenary to silence all witnesses.

E3Episode 3

Mar 13, 202645m

Ulises goes into hiding with Rebeca, the only witness who can prove his innocence. Together they discover where Pandora may be hidden, but Rebeca secretly activates the technology, exposing their location. Diskin sends his mercenary to close all loose ends. As violence erupts, Ulises loses everything and is forced to run once again.

E4Episode 4

Mar 13, 202641m

Rebeca is questioned by the police while Ulises becomes the prime suspect in another murder. When they reunite, they finally access Pandora and uncover its true nature. Unaware that she is being controlled through the contact lenses, Rebeca exposes their location. Biran heads toward their location, as both the police and Diskin close in.

E5Episode 5

Mar 13, 202642m

Ulises and Rebeca go to the Synchrotron. They need the power of the accelerator to obtain definitive proof that could stop 'Day One'. When they activate the contact lenses to infiltrate the facility, Diskin tracks them. A chase erupts inside the accelerator. Separated and cornered, Ulises escapes outside, where he comes face to face with Inspector Moreno, who aims... and fires.

E6Episode 6

Mar 13, 202642m

Ulises and Rebeca are taken to Diskin's headquarters under the threat of Inspector Moreno. Meanwhile, Beth considers betraying the magnate and seeks Salvador's help. Diskin reveals the true purpose of the lenses and asks Ulises for his collaboration. As the global launch begins, evidence of the technology's danger breaks into the live broadcast, exposing the truth.

About Day One

Day One is a drama, mystery series on Prime Video. The show first aired on Mar 13, 2026 and currently has 1 season and 6 episodes. Day One has been renewed and is returning for more episodes. It has a rating of 7.5/10 based on 4 votes. The cast includes Álex González, Asier Etxeandia, Alba Planas, Jordi Mollà, Renata Notni.