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Blue Lights returns for third series with 'high-stakes' and 'gripping' moments

Fans of the BBC police drama are set to be immersed in a sinister underworld beneath the surface of Belfast

Blue Lights' Katherine Devlin discusses her character

Police drama Blue Lights is returning for a third series, with the BBC promising "more high-stakes, gripping moments than ever before".


The TV series became an instant sensation after its debut in 2023, with viewers hailing it as "the best thing on TV" and likening it to mega-hit Line of Duty. A second series followed last year, captivating more viewers with the goings-on at the fictional Blackthorn police station in Belfast.


The third series of Blue Lights is now upon us, with fans set to be immersed in a sinister world hidden beneath the surface of middle-class life in Belfast "as the collapse of the old political and criminal order has paved the way for a new era of global gangs".


When does Blue Lights air?

Blue Lights makes its return to our television screens tonight (Monday September 29). It's scheduled to be broadcast on BBC One and iPlayer from 9pm, reports Belfast Live.

Who stars in series 3?

Sian Brooke reprises her role as Grace Ellis, Katherine Devlin returns as Annie Conlon and Nathan Braniff is back as Thomas Foster, with the trio no longer being fresh faces at the station.


Martin McCann is back as police officer Stevie Neill, while Joanne Crawford resumes her role as Inspector Helen McNally.

There are also some fresh faces in the cast, with Boiling Point's Cathy Tyson portraying Dana Morgan, a private club owner, and Bad Sisters' Michael Smiley featuring as new intelligence officer Paul 'Colly' Collins.


What can we expect in series 3?

Series three of Blue Lights picks up with response officers Grace, Annie and Tommy, who are now two years into their roles.

The upcoming series will test them as their duties lead them into a criminal underworld where accountants and solicitors enable organised crime.


In the meantime, a new gang has taken control of Belfast, "bringing danger closer to home for our officers than ever before".

Declan Lawn, who co-developed the police drama with Adam Patterson, commented: "Series three looks at the professional apparatus alongside organised crime, and how paramilitaries in Belfast are often in thrall to international organised crime gangs using the territory as a stopping off point for large scale drug smuggling."

"It also examines the sexual exploitation of children in care," he added. "These storylines are entirely fictional but informed by careful research so have a real authenticity."

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How many episodes can we expect?

Following the trend of previous series, the new series will consist of six episodes.

Blue Lights series three is on BBC One and iPlayer from 9pm on Monday September 29.

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