Blue Lights season 4 return date confirmed by BBC
Blue Lights season 4 return date confirmed by BBC

BBC police drama Blue Lights is back with season four, just one year after series three was broadcast. The fourth season will air on BBC One on Tuesday, September 29 at 9pm.

The series, starring Sian Brooke as Grace Ellis, Nathan Braniff as Tommy Foster, and Katherine Devlin as Annie Conlon, is set and filmed in Belfast and has a devoted following.

Fans react to the return

Reacting to the news, one fan wrote: "Best show in years from BBC. Compelling stories and excellent characters. One minute you're laughing, then you're so moved by the poignant scenes. LOVE Blue Lights."

While a second added: "I'm so looking forward to it!!!" and a third said: "So excited!!!!! I can hardly wait to wait!!!"

"BEST show on any platform!" commented another, while a fifth echoed: "Fantastic show. Each character is outstanding in their role. Wonderful and complex plots."

What to expect in season four

A synopsis reads: "Three years into their jobs as response officers, Constables Grace Ellis, Tommy Foster, and Annie Conlon are operating at their limit, facing a new threat on the streets that the police can barely control."

"Meanwhile, the murder trial of Gerry Cliff exposes a dangerous and long-buried secret that leads to chaos both inside the police and across the criminal underworld."

"As they grapple with big decisions about their future, Grace, Tommy and Annie must find the courage to face the greatest threat they have ever encountered: the truth."

On what to expect from season four, co-creator Declan Lawn teased: "Series 4 picks up six months on from the end of series 3, so it feels like the second half of one story."

"We tackle some of the biggest issues facing Northern Ireland today, including racism, attacks on migrant communities and pressures within the criminal justice system. It's probably our boldest series yet."

Blue Lights returns on Tuesday, September 29 at 9pm on BBC One.