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Line of Duty fans, we haven't got long to go until we finally get our hands on the long-anticipated sixth season - and according to the cast, it looks as if it's going to be another difficult case for AC-12.
The police corruption office has found itself stretched and tainted, with tensions running high as DS Steve Arnott (Martin Compston) and DI Kate Fleming (Vicky McClure) found themselves suspecting their Superintendent Ted Hastings (Adrian Dunbar) of being H - a murky senior police officer who wields considerable influence over the Organised Crime Syndicate.
And according to Adrian Dunbar, who plays bent-copper-catcher Hastings, things are still looking murky for Ted - and for AC-12 as a whole - at the start of season six.
"Quite a lot has happened and there's been quite a time jump," Adrian explains. "In his working life, a lot of things have destabilised which have affected the unit. I think he's another year older but not another year wiser.
"Let's face it -time is running out a bit for Ted; the age he is, whether he can stay in the force, is he useful enough, is he a bit of a dinosaur? He's up against quite a bit. His personal life is not in great shape."
Adrian also teased that the upcoming series of Line of Duty will feature several emotional moments, with all of AC-12 finding themselves put through their paces as they take on one of their most dangerous adversaries yet.
"I thought Vicky in particular has done some memorable work this series and Martin has some emotional scenes," he says. "Ted is put through the ringer; particularly towards the end."
However, that's not to say filming one of the most tense shows on television isn't without its funny sides, with Adrian diffusing one scene of all its drama by an unfortunate slip of the tongue.
"In one of the interviews, I had to say 'a bunch of racist thugs' but I got it wrong and said 'a bunch of racist slugs' which got a big laugh from the crew," he reveals. "I hope that survives on a bloopers reel somewhere so we can all see it!"
The sixth series of Line of Duty sees AC-12 investigating the unsolved murder of senior police officer Gail Vella (played by Andi Osho) in their highest-profile case to date.
Supt Ted Hastings, DI Kate Fleming and DS Steve Arnott are now required to investigate DCI Joanne Davidson (Kelly Macdonald), "the senior investigating officer of an unsolved murder, whose unconventional conduct raises suspicions at AC-12."
And judging by her icy cold demeanour, she could be their toughest and most slippery adversary yet - with the tension of the high-risk case clearly getting to the rest of AC-12 as seen in the first look.
We can't wait...
Line of Duty returns to BBC One and BBC iPlayer on Sunday 21st March at 9pm.
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