‘Trinity’: Netflix Reveals Premiere Date & Trailer for Gugu Mbatha-Raw & Richard Madden Thriller

Meredith Jacobs November 4, 2026, 10:06 am

Gugu Mbatha-Raw as Katherine Decker and Richard Madden as Webb Preston — 'Trinity'

Netflix has a new conspiracy thriller on its hands.

On Wednesday, November 4, the streamer released the premiere date, photos, and trailer for Trinity, starring Gugu Mbatha-Raw and Richard Madden.

As the video above shows, while at first it seems like there are hostiles closing in on a submarine, Katherine admits, “We came within seconds of the mistaken deployment of a tactical nuclear weapon.” There was never a threat. But can she trust Madden’s Webb? Watch the trailer for a look at the twists and turns to come.

Read on for everything we know so far about Trinity, from its cast to a premiere date and more.

When does Trinity premiere?

The eight episodes will drop on Tuesday, December 1.

What is Trinity about?

“A heroic female Naval Officer becomes involved with the outwardly charismatic Secretary of Defense, only to discover he may be at the heart of a dangerous conspiracy,” teases the logline from Netflix.

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Who’s in the Trinity cast?

The series stars Richard Madden, Gugu Mbatha-Raw, Marcia Gay Harden, JD Pardo, Bruce Greenwood, Robert Wisdom, Kirk Acevedo, Ben Cotton, James Remar, Jason Ralph, and Mark O’Brien.

Mbatha-Raw plays Commander Katherine Decker, who serves as second-in-command on the USS Kansas, a nuclear submarine and one of the deadliest weapons on Earth.

Madden plays Secretary of Defense Webb Preston. With a technology background that makes him different from most politicians, Webb’s innovation and purpose are seen as a threat in more ways than one.

Harden plays Margaret Vandenburg, the CEO and matriarch of her family’s business empire, guiding them to become a prominent family with political ties.

Jed Mercurio serves as showrunner, writer, and executive producer. (It’s a Bodyguard reunion for him and Madden.) Joining him as executive producers are Bradley Gardner, Wendy Mericle and Jimmy Mulville for HTM Television. The series is produced by 20th Television.