The BEST episodes of Blue Lights season 4

Every episode of Blue Lights season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Blue Lights season 4!

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.

Last Updated: 10/7/2026Network: BBC OneStatus: Continuing
Eyes
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#1 - Eyes

Season 4 - Episode 1 - Aired 9/29/2026

The section is challenged by escalating tensions at a community event, while the investigation into Dana Morgan’s drug partnership with Tina McIntyre falters.

Directors: Angela Griffin
Numbers
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#2 - Numbers

Season 4 - Episode 2 - Aired 10/6/2026

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

Directors: Angela Griffin