Trinity: Richard Madden reunites with the creator of Bodyguard for a Netflix thriller

With Trinity, Richard Madden reunites with Jed Mercurio, the creator of Bodyguard. Netflix has unveiled the trailer for their new series, which shifts the political thriller to the U.S. Navy and decision-making at the Pentagon.

Gugu Mbatha-Raw plays Katherine Decker, second-in-command of a nuclear submarine. Her growing closeness to Secretary of Defense Webb Preston, played by Madden, draws her into a conspiracy involving a secret program. The personal bond between them then comes into conflict with her duty as an officer.

Mercurio is the creator and writer of this series, whose first two episodes are directed by Michael Cuesta. Netflix says all seven episodes will be released on December 1, 2026.

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For more, check out our selection of new Netflix releases for December, our guide to new streaming releases across all platforms, and today’s picks in What to Watch on Streaming Today.

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