Episode 1
Eyes
58m8.8 / 10
The section is challenged by escalating tensions at a community event, while the investigation into Dana Morgan’s drug partnership with Tina McIntyre falters.
Where to watch Blue Lights
TV series
Blue Lights
20234 seasons7.6 / 10
Follows rookie police officers working in Belfast, a city in which being a frontline response cop comes with unique pressures and dangers.
Streaming, rental and purchase options
Where to watch in United States
Checked Oct 30, 2026
Blue Lights is available to stream on Britbox, Britbox (Via Amazon Prime), HBO (Via Hulu), HBO Max, HBO Max (Via Amazon Prime), Prime Video, Hoopla, and The Roku Channel in United States. You can also buy it from Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
Stream
Synopsis
Follows rookie police officers working in Belfast, a city in which being a frontline response cop comes with unique pressures and dangers.
Season 4 episodes
Choose an episode, then use the watch options above for the show.
Episode 2
Numbers
58m7.0 / 10
In the wake of the attack on Amira, Grace’s determination puts her in danger, while Mo spirals further with violent consequences.
Where to watch Blue Lights
Episode 3
Everybody Knows
58m7.9 / 10
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.
Where to watch Blue Lights
Episode 4
So Far
58m7.5 / 10
Sandra reflects on a secret Gerry once shared with her and realises that she is in possession of volatile information.
Where to watch Blue Lights
Episode 5
Ghosts
57m8.2 / 10
Sandra enlists help to expose Gerry’s secrets, while Tommy and Shane inch closer to exposing the drug pipeline.
Where to watch Blue Lights
Episode 6
The Line
59m8.3 / 10finale
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.
Where to watch Blue LightsEpisode information updated Nov 14, 2026
More about Blue Lights
Cast
Sian BrookeGrace Ellis
Katherine DevlinAnnie Conlon
Nathan BraniffTommy Foster
Martin McCannStevie Neil
Richard DormerGerry Cliff
Joanne CrawfordHelen McNally
Hannah McCleanJen Robinson
Andi OshoSandra CliffCredits
- Created by
- Declan Lawn, Adam Patterson
- Written by
- Declan Lawn, Adam Patterson, Fran Harris
Production details
- Status
- Returning Series
- Series type
- Scripted
- Episodes
- 24
- Original language
- English
Networks & production
BBC OneUnited Kingdom- Gallagher FilmsUnited Kingdom
Two Cities TelevisionUnited Kingdom
Themes
belfast, north irelandearnest
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