‘Blue Lights’ Season 4 Episode 3 Release Date, Time and Where to Watch as Gerry Cliff’s Story Is Hanging by a Thread

Belfast police drama ‘Blue Lights’ is well into its latest run, and viewers are already asking when the next chapter lands. Anyone hunting for the ‘Blue Lights’ season 4 episode 3 release date will find the answer depends on whether they watch weekly or binge. All six episodes were made available on BBC iPlayer from 6am on launch day, while the opening episode aired on BBC One at 9pm that evening.

That split release has left the schedule a little confusing, so here is a clear breakdown of when the third installment arrives, where to stream it and what the story has in store. Fans of ‘Blue Lights’ have plenty to look forward to, because the new run is shaping up as a heavy hitter for the BBC.

‘Blue Lights’ Season 4 Episode 3 Release Date

The third episode is titled Everybody Knows. It is listed to premiere on October 13, 2026. Rotten Tomatoes lists the same airing date for the episode.

That date is for the traditional television broadcast. Since the BBC dropped the whole season at once, subscribers who prefer to binge can already watch the episode right now on iPlayer. The entire season has been available as a boxset on BBC iPlayer from the premiere date.

The season began on a Tuesday, and the broadcast rhythm follows the same night each week. Episode two follows on Tuesday, October 6 at 9pm, with the schedule described as provisional. That puts the next installment one week after that, which lines up neatly with the listed date.

Air Time and Weekly Schedule

Viewers in the UK should tune in at the same slot used all season. Series four airs weekly on Tuesday evenings on BBC One at 9pm. That means the third episode should arrive at 9pm on October 13 for anyone watching live.

The run is short and tightly packed. The season comprises six episodes, with the finale set to air on BBC One at 9pm on Tuesday, November 3. Following the schedule, the fourth episode is expected a week after the third. It is titled So Far and is listed for October 20, 2026.

Fans keeping an eye on the calendar will notice this follows the late September window used by the previous run. The new run lands in the same late September window as Series 3, so fans have not had to wait long for another trip back to Blackthorn.

Where to Watch ‘Blue Lights’ Season 4?

For UK audiences, the home of the series is simple. Viewers can watch for free on BBC One and BBC iPlayer. A valid UK TV licence is needed to stream on the platform.

International fans have options too, though they come on a delay. BritBox will carry the series in the United States starting Thursday, November 12, 2026, with one episode streaming a week through mid December. In Australia, the drama will air on SBS and SBS On Demand starting October 4.

If you are catching up before the new episodes, the earlier seasons are easy to find. Seasons one to three are available to stream on BBC iPlayer. That makes it simple to refresh your memory of Grace, Tommy and Annie before diving back into the trial storyline.

‘Blue Lights’ Season 4 Episode 3 Preview and What to Expect

The official synopsis points to a courtroom showdown. Gerry’s murder trial begins as Mo’s worsening condition creates a conflict over justice, while Shane faces a tense confrontation with Lee. That is a lot of dramatic fuel for a single hour.

The return of a fan favorite adds extra weight. Richard Dormer comes back as Gerry Cliff for a one off episode addressing unresolved storylines. His presence hangs over the trial, and it looks like the people closest to him will be the ones carrying the emotional load.

The season as a whole sits in a darker place for the core trio. Constables Grace Ellis, Tommy Foster and Annie Conlon are pushed to their limits by a dangerous wave of street crime while the murder trial exposes a long buried secret. Angela Griffin directs the first three episodes, with Sam O’Mahony taking over for the final three.

The goodwill surrounding the show is considerable, which raises the stakes for each new chapter. The third season sported a 100% critical rating and a 93% audience score on Rotten Tomatoes. With Gerry in the dock and Sandra, Tina and Mo all in the courthouse, will the verdict leave you cheering for justice or furious at the system, and who do you think walks out of that courtroom carrying the heaviest secret?