Quick answer: Trinity premieres on Netflix on Tuesday, December 1, 2026. The political thriller has seven episodes, all released on day one, stars Gugu Mbatha-Raw and Richard Madden, and comes from Jed Mercurio, the creator of Bodyguard. Netflix has released the official trailer.
Netflix has set the date for Trinity, a nuclear-submarine conspiracy thriller from Jed Mercurio, the writer behind Bodyguard and Line of Duty. The first trailer arrived in early November. Here is what is confirmed so far.
When does Trinity come out on Netflix?
Trinity premieres on December 1, 2026, which is a Tuesday, exclusively on Netflix. Both Netflix’s Tudum and TVLine give the December 1 date. Netflix says all seven episodes debut on December 1, so there is no weekly rollout.
| Detail | Status |
|---|---|
| Title | Trinity |
| Premiere | Tuesday, December 1, 2026 |
| Where to watch | Netflix |
| Episodes | 7 |
| Creator and showrunner | Jed Mercurio |
| Rating | 16+ (per Tudum) |
| Release format | All seven episodes debut on December 1 (per Netflix Tudum) |
What is Trinity about?
According to Netflix, a naval officer on a nuclear submarine forms a close bond with the Secretary of Defense. She is then pulled into a conspiracy around a top-secret program called Trinity. Mercurio describes the show as “high-octane action with a nail-biting conspiracy thriller.”
TVLine describes the trailer as opening with a submarine that nearly carries out a wrongful nuclear weapon deployment. The officer and the Secretary of Defense then work to protect her crew and uncover a threat to the country, but she begins to suspect he is hiding something sinister.
Who is in the cast of Trinity?
Netflix lists the following cast:
- Gugu Mbatha-Raw as Commander Katherine Decker
- Richard Madden as Secretary of Defense Webb Preston
- Marcia Gay Harden as Margaret Vandenburg
- Bruce Greenwood as Special Agent Eric Colby
- Robert Wisdom as Admiral Griff Tatum
- Kirk Acevedo as Captain Jock Campbell
- James Remar as President Paul Barnard
- JD Pardo as Tom Flores
- Ben Cotton as Special Agent Jake Ryan
- Jason Ralph as Brooks Vandenburg
- Mark O’Brien as Dr. Brian York
Who is making Trinity?
Jed Mercurio is the writer and showrunner. He executive produces with Jimmy Mulville for Hat Trick and with Wendy Mericle, per Netflix. Michael Cuesta directed and executive produced the first two episodes. The show reunites Mercurio with Madden, who led Bodyguard.
Is there a trailer for Trinity?
Yes. Netflix released the official trailer in early November, and you can watch it below. Per TVLine it opens aboard a submarine in the middle of a nuclear-weapon scare.
How many episodes does Trinity have?
Trinity has seven episodes, according to Netflix’s Tudum and TVLine. An earlier Netflix announcement described an eight-episode order, and at least one report still repeats that figure, so go by the seven-episode count Netflix now lists.
What else is coming to Netflix soon?
For the full month, see our November 2026 movies and TV release calendar. Other Netflix premieres we have covered include The Altruists on November 19 and The Hunting Wives Season 2 on November 26. If you like Netflix thrillers, Black Doves Season 2 is also worth a look.
Watch the official trailer
FAQ
When does Trinity premiere on Netflix?
Trinity premieres on Netflix on Tuesday, December 1, 2026.
Who stars in Trinity?
Gugu Mbatha-Raw plays Commander Katherine Decker and Richard Madden plays Secretary of Defense Webb Preston.
Will all episodes of Trinity release at once?
Yes, all seven episodes debut on Netflix on December 1.
Sources: Netflix Tudum, TVLine, What’s on Netflix.