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It's the Line of Duty finale this weekend - and we still have no idea how Jed Mercurio is going to wrap this case up.
AC-12 are rapidly closing in on 'fourth man' H, with the trailer for the closing episode seeing the team raid a property. However, we're still not clear who H is and there's seemingly an infinite amount of possibilities.
Yep, Patricia Carmichael (Anna Maxwell Martin), Marcus Thurwell (James Nesbitt), Ted Hastings (Adrian Dunbar) and even Kate Fleming (Vicky McClure) all find themselves in the frame for being the missing link to the OCG.
And we can now add Chris Lomax (Perry Fitzpatrick) to the frame, after fans picked up on a comment he made at the crime scene on Sunday night's episode.
In an easily-overlooked line, Kate Fleming and Steve Arnott (Martin Compston) arrive the OCG building to find Chris wrapping up a chat with someone in forensics.
He clearly says: "Could be in The Red Lion by eight, nice work," before speaking to Kate.
Listen up Line of Duty fans, because this is where it gets interesting.
While the Red Lion is a fairly common name for your typical British pub, it's also played a vital part in this series.
The Red Lion is the pub where the CHIS was last seen. It's also where Deborah Devereaux (Kerri McLean), the witness who implicated Terry Boyle (Tommy Jessop) was sourced. It's also thought to be the backdrop to where Carl Banks bragged about the murder of the Gail Vella (Andi Osho).
The plot thickens - if you cast your mind back to earlier this season, you will remember Kate telling Chris to dig into the pub a little more after she realised he had not checked CCTV, nor run a background check on witnesses.
Something to hide, Lomax?
In other Line of Duty news, the series finale sees the welcome return of 'Balaclava Man' after footage was leaked online.
At the end of the clip, we see a man in a balaclava being led away by armed officers.
As fans will know, Balaclava Man is the pseudonym given to various members of the OCG. Originally thought to be just one person, the identity of balaclava man has been a mystery since Season 4.
However, it was eventually revealed by Jimmy Lakewell (RIP) that all members of the OCG wear balaclavas to cover their faces - so perhaps this means numerous members of the OCG will be appearing in the season finale?
It's not clear what will be unveiled, but let's face it, the finale looks like it'll be a dramatic watch!
Line Of Duty concludes Sunday at 9pm on BBC One.
Featured Image Credit: BBC
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