One of the biggest shows in the UK has returned, with Line of Duty gearing up for its sixth series.
The new episodes will take place following the explosive events of series five – and there’s one question on everyone’s lips.
Who is H? The last man (or woman) from a quartet of corrupt coppers embedded deep within the Central Police Force is yet to be revealed, and series six could have the answers.
Adrian Dunbar, Vicky McClure, Martin Compston and co back in action in AC-12, and they welcome Detective Constable Chloe Bishop played by Shalom Brune-Franklin.
It’s an extended series too, with more episodes than ever before coming our way.
But where is the series set? Here’s everything you need to know.
Where is Line of Duty filmed?
The bulk of the series is shot in Belfast, while sets in Birmingham are also used to capture the drama.
While most of the filming takes place in Northern Ireland, the setting of the series itself is less clear.
The location of the series is never directly addressed, but there are a number of clues that viewers have picked up on over the years.
The action takes place in The City, which is ‘somewhere around the M6’, and the series refers to the fictional East Midlands Constabulary.
The area code 0121 is also referred to in the show, which is the Birmingham code.
When was the new series filmed?
Line of Duty series six endured a tricky start to life, with filming suffering a long delay due to the pandemic. Production initially got underway in February last year in Belfast, but was delayed due to lockdown a month later.
The series was forced to wait until September to begin again, and it was completed in November.
Line of Duty begins on Sunday at 9pm on BBC One. It will also be available to watch on BBC iPlayer.