Jed Mercurio is back in the writers' room with a brand new series starring Gugu Mbatha-Raw and Richard Madden.

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Titled Trinity, the eight-part thriller will be making its way to Netflix, following Commander Katherine Decker (Mbatha-Raw), a heroic female naval officer who had served "as second-in-command on the USS Kansas, a nuclear submarine and one of the deadliest weapons on Earth", who becomes involved with Secretary of Defence Webb Preston (Madden).

"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," as per the character description.

But soon, Katherine discovers Webb may be at the heart of a dangerous conspiracy.

The Line of Duty creator will write and executive produce the series and serve as showrunner, and it will be the first collaboration between himself and Madden since Bodyguard in 2018.

Madden's latest projects include Prime Video movie Killer Heat, alongside Joseph Gordon-Levitt and Shailene Woodley, as well as TV series Citadel, which is due to return for a second season in 2026.

Mbatha-Raw recently starred in the second season of Apple TV+ series Surface, which aired through February to April earlier this year. Her other recent works include Loki, The Girl Before and Netflix's Lift.

Mercurio recently penned ITV series Breathtaking, a medical drama centred on NHS works during the COVID-19 pandemic.

Yet the writer is best known by most viewers for his work on Line of Duty, which came to an end in 2021, but there have been reports of its return.

Vicky McClure, Martin Compston and Adrian Dunbar in Line of Duty.
Vicky McClure, Martin Compston and Adrian Dunbar in Line of Duty. BBC

It had been reported that filming would commence next year after Martin Compston, Vicky McClure and Adrian Dunbar's schedules aligned, but Compston has since poured cold water on it being soon.

Compston said that due to the actors' busy schedules, if a new season were to happen, it would be "a way off".

Speaking to The Sun, Compston revealed: "We're always talking about possibilities and schedules and whatnot. Everybody's got stuff going on at the minute, so I think anything, unfortunately, would be a way off."

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Authors

Katelyn MensahSenior Entertainment Writer

Katelyn Mensah is the Senior Entertainment Writer for Radio Times, covering all major entertainment programmes, reality TV shows and the latest hard-hitting documentaries. She previously worked at The Tab, with a focus on reality TV and showbiz news and has obtained a BA (Hons) in Journalism.

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