Jed Mercurio created Line of Duty. He created Bodyguard, which made Richard Madden a star. Now he has reunited with Madden for Trinity – a naval thriller about a submarine commander who discovers that the Secretary of Defense may be at the centre of a dangerous conspiracy – and the production built the interior of a nuclear submarine inside a studio in North Vancouver, dressed the Vancouver Art Gallery with giant blue drapes and gold lettering, and then flew to Washington DC to film at the World War II Memorial on the National Mall.
Trinity is created and showrun by Mercurio, directed by Michael Cuesta (Homeland, Dexter), and produced by 20th Television, Hat Trick Mercurio Productions and Netflix. Gugu Mbatha-Raw plays Commander Katherine Decker, second-in-command on the nuclear submarine USS Kansas.
Richard Madden plays the enigmatic Secretary of Defense Webb Preston. Marcia Gay Harden and JD Pardo co-star as series regulars. Bruce Greenwood, Robert Wisdom, Kirk Acevedo, Ben Cotton, James Remar, Jason Ralph and Mark O’Brien recur.
As geopolitical tensions rise toward crisis point, Decker becomes involved with the Secretary of Defense – only to learn he may be at the centre of a conspiracy with global consequences.
The production was based at North Shore Studios in North Vancouver – the former Lions Gate Studios complex on Brooksbank Avenue. The studio’s soundstages housed the interior mock-ups of the nuclear submarine USS Kansas, built as physical sets, as well as a submarine in a pool for underwater and waterline sequences.
At the end of June 2025, the Daily Hive obtained a notice of filming for Trinity at Crescent Beach, located at 12157 Beecher Street in South Surrey. On Monday July 7, minimal crew and work trucks prepped the location between 7am and 7pm. Filming took place on Tuesday July 8. Equipment was taken down on Wednesday July 9. Crescent Beach – a quiet, flat stretch of shoreline on Boundary Bay.
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In mid-July, the production transformed the Vancouver Art Gallery into Washington DC for two overnight shoots. The south facade of the gallery was decorated with giant blue drapes and the phrase “Placed upon the horizon (Casting Shadows)” in gold letters. A Washington DC Metropolitan Police vehicle was set up nearby, alongside crew trucks and craft services. The gallery’s neoclassical facade – originally built as the city’s courthouse in 1906 – dressed convincingly as a federal district landmark.
The production was spotted lighting up Beaver Lake in Stanley Park for night filming. Beaver Lake is the small, reed-covered lake in the heart of the park, surrounded by walking trails and dense forest.
One of the Riverview Hospital buildings in Coquitlam was transformed into the Naval Medical Center in Portsmouth, Virginia. Riverview – the decommissioned psychiatric hospital in the Vancouver suburb – has been one of British Columbia’s most frequently used filming locations for decades, standing in for hospitals, prisons, asylums and government institutions across hundreds of productions.
The production did not rely entirely on Vancouver to build its version of Washington. Filming took place at Union Station in DC and at the World War II Memorial near the reflecting pool on the National Mall. In early November 2025, scenes were filmed around the memorial – the monument dedicated to Americans who served during the Second World War, its columns and arches standing at the eastern end of the reflecting pool between the Lincoln Memorial and the Washington Monument.
Trinity premieres on Netflix on December 1, 2026.
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© Netflix, 20th Television
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© Angel, 2521 Entertainment,
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© Netflix, Chernin Entertainment
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