BBC iPlayer · Running

Blue Lights

Drama, Crime · 2023 · Rated 7.2/10

Last aired: S4 E6, The Line · 2026-09-29

For three police recruits in Belfast, the pressure is immense. Facing criminal gangs and divided communities, they don't know who to trust. The odds are they won't all make it.

Cast

Siân Brooke Grace Ellis

Katherine Devlin Annie Conlon

Nathan Braniff Tommy Foster

Martin McCann Stevie Neil

Andi Osho Sandra Cliff

Joanne Crawford Helen McNally

Abigail McGibbon Tina McIntyre

Hannah McClean Jen Robinson

Andrea Irvine Nicola Robinson

Frank Blake Shane Bradley

Jonathan Harden David ‘Jonty' Johnson

Dearbháile McKinney Aisling Byrne

Desmond Eastwood DS Murray Canning

Richard Dormer Gerry Cliff

Michael Shea Mo McIntyre

Seamus O'Hara Lee Thompson

John Lynch James McIntyre

Dane Whyte O'Hara Gordy Mackle

Paddy Jenkins Happy Kelly

Seána Kerslake Margaret 'Mags' Thompson

Alfie Lawless Henry Thompson

Dan Gordon Robert 'Rab' McKendry

Michael Smiley Paul ‘Colly' Collins

Cathy Tyson Dana Morgan

Season 4

Season 1 Season 2 Season 3 Season 4

E1 Eyes 2026-09-29 · 58 min The section is challenged by escalating tensions at a community event, while the investigation into Dana Morgan's drug partnership with Tina McIntyre falters.

E2 Numbers 2026-09-29 · 58 min In the wake of the attack on Amira, Grace's determination puts her in danger, while Mo spirals further with violent consequences.

E3 Everybody Knows 2026-09-29 · 58 min As Gerry's murder trial begins, Mo's unstable mental health ignites a struggle between the state and justice. Shane has a tense stand-off with Lee.

E4 So Far 2026-09-29 · 58 min Sandra reflects on a secret Gerry once shared with her and realises that she is in possession of volatile information.

E5 Ghosts 2026-09-29 · 57 min Sandra enlists help to expose Gerry's secrets, while Tommy and Shane inch closer to exposing the drug pipeline.

E6 The Line 2026-09-29 · 59 min Life is in the balance after the explosion at Katie's house, while Gerry's evidence on state collusion is released. The section race to put an end to Morgan's empire.

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