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Crime•Drama

The Best Episodes of Blue Lights Season 4

Every episode of Blue Lights Season 4 ranked from best to worst. Discover the Best Episodes of Blue Lights Season 4!

Binge this in 3h 52m•Peaking at 8.2/10

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

Airs on
BBC One
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Seasons4

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Episode Rankings

  1. #1 Fan Favorite
    Blue Lights Season 4 Episode 3 - Everybody Knows
    8.2/10(133 votes)

    S4:E3

    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.

    Director:Unknown
    Writer:Unknown

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  2. Blue Lights Season 4 Episode 4 - So Far
    8.0/10(174 votes)

    S4:E4

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

    Director:Unknown
    Writer:Unknown

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  3. Blue Lights Season 4 Episode 2 - Numbers
    7.6/10(142 votes)

    S4:E2

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

    Director:Unknown
    Writer:Unknown

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  4. Blue Lights Season 4 Episode 1 - Eyes
    7.3/10(210 votes)

    S4:E1

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

    Director:Unknown
    Writer:Unknown

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Season 4 Ratings Summary

"Everybody Knows" is the best rated episode of "Blue Lights" season 4. It scored 8.2/10 based on 133 votes. Directed by Unknown and written by Unknown, it aired on 10/13/2026. This episode is rated 0.2 points higher than the second-best, "So Far".