How to Watch Zero Day Online in 4K

If you want to watch Zero Day, the 2025 Netflix political thriller miniseries starring Robert De Niro as a former United States president drawn back into public life to investigate a devastating cyberattack, this is the complete guide. Find out what the show is, who created it, who else is in it, where to stream it, and how to watch it in 4K with InfinityTV.

What is Zero Day?

Zero Day is an American political thriller television miniseries that premiered on Netflix on February 20, 2025. The series consists of six episodes, all directed by Lesli Linka Glatter, one of the most respected directors in American prestige television — known for her Emmy-winning work on Homeland.

The show was created by Eric Newman, Noah Oppenheim, and Michael Schmidt. It represents a significant marker in Robert De Niro's television career — one of Hollywood's most celebrated film actors appearing in his first major scripted drama series for a streaming platform.

Who created Zero Day?

Zero Day was created by three television figures with significant industry credentials:

• Eric Newman — a producer and writer known for his work on The Rain, Altered Carbon, and Narcos: Mexico
• Noah Oppenheim — a television executive and writer who served as president of NBC News
• Michael Schmidt — a journalist and author

The combination of a narrative thriller producer, a network news executive, and a journalist as the creative team reflects the show's dual ambition: to work as a genre thriller while engaging with real anxieties about cyberattacks, political institutions, and the fragility of public trust.

Who stars in Zero Day?

Zero Day features one of the most impressive ensemble casts of any Netflix release in 2025:

• Robert De Niro as Gabriel Baxter, a former President of the United States — one of the most prominent roles of De Niro's career in long-form television
• Jesse Plemons — known for Breaking Bad, Fargo, The Power of the Dog, and Killers of the Flower Moon
• Lizzy Caplan — known for Masters of Sex and Fleishman Is in Trouble
• Connie Britton — known for Friday Night Lights and Nashville
• Joan Allen — the Academy Award-nominated actress known for The Contender and The Ice Storm
• Matthew Modine — known for Full Metal Jacket and Stranger Things
• Angela Bassett — Academy Award-nominated actress known for What's Love Got to Do with It and Black Panther
• Bill Camp — known for Lincoln, Midnight Special, and The Power of the Dog
• Dan Stevens — known for Downton Abbey, Legion, and The Guest

This is an exceptional ensemble for a six-episode limited series, and the convergence of De Niro with actors of this calibre around a political thriller premise drew significant attention at the time of release.

What is Zero Day about?

The premise is grounded in a contemporary anxiety: a zero-day cyberattack — an attack exploiting a previously unknown software vulnerability, giving defenders no time to prepare — strikes the United States with devastating consequences. The attack triggers a national crisis and a political vacuum in which the current government's response is seen as insufficient.

Gabriel Baxter, De Niro's former president, is asked to come out of retirement and lead an independent investigation into the attack — who carried it out, how it was possible, and what it means for US security and institutions going forward.

The series uses the cyberattack as a lens to examine questions of political accountability, institutional trust, personal ambition, and the nature of truth in a world of competing narratives. It is a thriller in structure but a political drama in its ambitions.

Why does Zero Day matter in the 2025 streaming landscape?

Zero Day marks Robert De Niro's first significant scripted television drama series — a cultural event for audiences who have followed his film career across five decades. His screen credits include The Godfather Part II, Taxi Driver, Raging Bull, Goodfellas, Cape Fear, Heat, Casino, Jackie Brown, The Irishman, and Killers of the Flower Moon. His decision to anchor a Netflix political thriller at this point in his career reflected both the quality of the project and the platform's ability to attract talent of that level.

The ensemble around him — Plemons, Caplan, Bassett, Camp, Allen — ensures that the supporting performances match the ambition of the premise.

How to watch Zero Day in 4K — step by step

1. Open Netflix. Zero Day is a Netflix Original series available globally on Netflix wherever the platform operates.
2. Check your subscription plan. Netflix 4K streaming requires the Premium plan. Confirm that your plan includes Ultra HD.
3. Test your internet connection. Stable 4K streaming requires at least 25 Mbps. Run a speed check before you start.
4. Select a 4K-capable device. Apple TV 4K, Amazon Fire TV Stick 4K, Chromecast with Google TV, 4K Smart TVs, and PlayStation 5 all support 4K Netflix streaming.
5. Enable HDR or Dolby Vision. If your television supports it, enable HDR in your picture settings. Political thrillers benefit from high-contrast, high-detail image quality.
6. Stream through InfinityTV. InfinityTV gives you access to your Netflix content alongside InfinityTV's own library of 150,000+ Movies & Series and 22,000+ live TV channels from around the world — one app, no platform-switching.
7. Watch all six episodes in sequence. Zero Day is a single-arc miniseries. All episodes were released simultaneously on Netflix, making it available to watch immediately in full.

What to watch after Zero Day

If Zero Day is your kind of television, these series share its political thriller intensity and interest in institutional trust:

• Homeland (Paramount+) — the long-running political thriller directed in many episodes by Lesli Linka Glatter, who directed all of Zero Day. Eight seasons.
• The Diplomat (Netflix) — the 2023 Netflix political drama starring Keri Russell as a US ambassador to the UK. Two seasons available.
• Dept. Q (Netflix) — the 2025 Netflix Edinburgh cold case thriller with Matthew Goode.
• Missing You (Netflix) — another 2025 Netflix thriller available on the same platform.

For a full guide to what is worth watching now, see our list of top series to watch in 2025 and the best IPTV for Firestick for device recommendations.

InfinityTV: streaming everything in one place

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Why does Zero Day matter as a political thriller in 2025?

The political thriller as a genre operates in relationship to contemporary anxiety. All the President's Men (1976) emerged from Watergate. 24 (2001) emerged from the post-9/11 security state. Homeland (2011) from the long wars and intelligence failures of the preceding decade. Zero Day enters the genre at a moment when cyberattacks on critical infrastructure — power grids, financial systems, government communications — are a real and widely reported threat. The show does not claim to be a documentary, but it draws on a genuine contemporary fear: that the digital systems on which modern societies depend are not as secure as they are assumed to be, and that a sufficiently sophisticated attacker could cause catastrophic harm with no warning.

De Niro's Baxter is a former president asked to investigate this kind of attack — an older figure from a different era of American political life, recalled to help a world he no longer fully recognises. This generational element gives the show a second layer of anxiety beneath the cyberattack plot: the anxiety of a political generation confronting a world that has moved beyond the frameworks they built.

How does Lesli Linka Glatter shape Zero Day as director?

Directing all six episodes of a limited series gives Glatter an unusual consistency of visual approach. She is known from Homeland — where her Emmy-winning episodes were characterised by controlled tension, precise pacing, and an understanding of how institutional environments communicate power and paranoia — and she brings those qualities to Zero Day. The series has the look and feel of prestige political television: sober colour grading, careful framing, a visual restraint that keeps the thriller mechanics in the foreground rather than distracted by cinematic excess.

Her experience on Mad Men, Twin Peaks: The Return, and The Walking Dead makes her one of the most experienced prestige television directors working today, and Zero Day benefits from that consistency across its entire six-episode run.

Frequently asked questions

Where can I watch Zero Day? Zero Day is available on Netflix, where all six episodes were released on February 20, 2025. You can access it through InfinityTV, which gives you Netflix content alongside 22,000+ live channels and 150,000+ Movies & Series in one platform.

Who stars in Zero Day? Robert De Niro leads as a former US president. The supporting cast includes Jesse Plemons, Lizzy Caplan, Angela Bassett, Joan Allen, Connie Britton, Bill Camp, Matthew Modine, and Dan Stevens.

Who created Zero Day? Zero Day was created by Eric Newman, Noah Oppenheim, and Michael Schmidt. All six episodes were directed by Lesli Linka Glatter, known for her Emmy-winning direction of Homeland.

What is a zero-day cyberattack? A zero-day cyberattack exploits a previously unknown software vulnerability — meaning defenders have had zero days to prepare a patch or response. In the series, a devastating zero-day attack on the United States triggers the political crisis that drives the plot.

How many episodes does Zero Day have? Zero Day is a six-episode miniseries. All six episodes were released simultaneously on Netflix on February 20, 2025.

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