Blue Lights Series 4 poster

Blue Lights Season 4

6 Episodes First aired Sep 29, 2026 TMDB★8.0

Follows rookie police officers working in Belfast, a city in which being a frontline response cop comes with unique pressures and dangers.

Episodes

E1
1. Eyes
Sep 29, 2026 · 58m

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
2. Numbers
Oct 6, 2026 · 58m

In the wake of the attack on Amira, Grace’s determination puts her in danger, while Mo spirals further with violent consequences.

E3
3. Everybody Knows
Oct 13, 2026 · 58m

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
4. So FarAirs Oct 20, 2026
Oct 20, 2026 · 58m

Sandra reflects on a secret Gerry once shared with her and realises that she is in possession of volatile information.

E5
5. GhostsAirs Oct 27, 2026
Oct 27, 2026 · 57m

Sandra enlists help to expose Gerry’s secrets, while Tommy and Shane inch closer to exposing the drug pipeline.

E6
6. The LineAirs Nov 3, 2026
Nov 3, 2026 · 59m

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.