Mike Smith
As of November 14, 2026, Blue Lights Season 4 is now streaming for free on TVNZ+. TVNZ+ is a free streaming service, and you only need a free account to start watching the latest episodes online.
TVNZ+ is only available in New Zealand, so viewers in other countries will see regional restrictions when trying to access the platform.
If you live outside New Zealand and still want to watch the new season, you can follow the simple steps below to access this free streaming service from any country.
Blue Lights Season 4 Synopsis
Blue Lights Season 4 is a new season of the British crime drama series that follows Grace Ellis, Tommy Foster and Annie Conlon three years into their work as police response officers in Belfast. Created and written by Declan Lawn and Adam Patterson, the season stars Siân Brooke, Nathan Braniff, Katherine Devlin, Martin McCann and Andi Osho as the officers face growing pressure on the streets while the murder trial of Gerry Cliff uncovers a long-hidden secret connected to the police and Belfast’s criminal underworld.
Six months after the events of the previous season, Grace, Tommy and Annie are pushed to their limits as a new threat develops across the city. At the same time, the investigation involving Dana Morgan and Tina McIntyre, Gerry Cliff’s past and questions surrounding state collusion bring the officers closer to a truth that could have serious consequences for everyone involved.
Wher is Blue Lights Season 4 currently streaming?
Blue Lights Season 4 is available to stream on BBC iPlayer in the UK, BritBox in the US and Canada, SBS On Demand in Australia, and TVNZ+ in New Zealand.
Blue Lights Season 4 Episodes
Here are the six episodes in Blue Lights Season 4.
- Episode 1 – Eyes
Grace, Tommy, Annie and the section deal with rising tensions at a community event while the investigation into Dana Morgan’s drug operation with Tina McIntyre runs into trouble. - Episode 2 – Numbers
After the attack on Amira, Grace puts herself at risk as she searches for answers, while Mo’s situation becomes increasingly violent. - Episode 3 – Everybody Knows
Gerry’s murder trial begins as Mo’s worsening condition creates a conflict over justice, while Shane faces a tense confrontation with Lee. - Episode 4 – So Far
Sandra remembers a secret Gerry once shared with her and begins to understand how important the information could be. - Episode 5 – Ghosts
Sandra seeks help to reveal Gerry’s secrets as Tommy and Shane move closer to uncovering the drug pipeline. - Episode 6 – The Line
The aftermath of the explosion at Katie’s house leaves a life at risk as Gerry’s evidence about state collusion is released and the section tries to bring Morgan’s operation to an end.
Blue Lights Season 4 Cast
Here are the main cast members in Blue Lights Season 4.
- Siân Brooke as Grace Ellis
- Martin McCann as Stevie Neil
- Katherine Devlin as Annie Conlon
- Nathan Braniff as Tommy Foster
- Andi Osho as Sandra Cliff
- Joanne Crawford as Chief Inspector Helen McNally
- Frank Blake as Shane Bradley
- Abigail McGibbon as Tina McIntyre
- Dearbháile McKinney as Aisling Byrne
- Neil Keery as Sergeant Lawrence McCloskey
- Andrea Irvine as Chief Superintendent Nicola Robinson
- Cathy Tyson as Dana Morgan
- Hannah McClean as Jen Robinson
- Jonathan Harden as Jonty Johnston
- Michael Smiley as Paul “Colly” Collins
- Richard Dormer as Gerry Cliff
On What Devices Can You Watch TVNZ+?
You can stream TVNZ+ on a wide range of supported devices, including smartphones, tablets, computers, smart TVs, and streaming devices.
| Device Category | Supported Devices |
|---|---|
| Smartphones | iPhone (iOS 15+), Android phones (Android 7+) |
| Tablets | iPad (iPadOS 15+), Android tablets (Android 7+) |
| Computers | Windows PCs, Mac desktops and laptops |
| Smart TVs | Samsung, LG, Sony, Panasonic, Hisense, TCL, Philips, Toshiba |
| Streaming Devices | Apple TV, Amazon Fire TV Stick, Chromecast, Google TV |
| TV Platforms | Android TV, Sky Box, Sky Pod, SmartVU |
| Web Browsers | Google Chrome, Mozilla Firefox, Safari, Microsoft Edge |
FAQs
Who created Blue Lights?
Blue Lights was created by Declan Lawn and Adam Patterson.
Who wrote Blue Lights Season 4?
Declan Lawn and Adam Patterson wrote Blue Lights Season 4.
Who directs Blue Lights Season 4?
Angela Griffin directs Episodes 1 to 3, while Sam O’Mahony directs Episodes 4 to 6 of Blue Lights Season 4.
Who produces Blue Lights Season 4?
Brendan Mullin is the producer of Blue Lights Season 4.
Who plays Grace Ellis in Blue Lights?
Siân Brooke plays Grace Ellis in Blue Lights. Brooke is also known for her television work in Sherlock, Trying, Doctor Foster and House of the Dragon.
Does Richard Dormer return in Blue Lights Season 4?
Yes, Richard Dormer returns as Gerry Cliff in Blue Lights Season 4 for a special appearance.
What genre is Blue Lights?
Blue Lights is a British police crime drama series set in Belfast, Northern Ireland.
How many episodes are in Blue Lights Season 4?
Blue Lights Season 4 has six episodes.
Where is Blue Lights filmed?
Blue Lights is filmed in and around Belfast, Northern Ireland, where the story is also set.
Trailer
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