The highly-anticipated sixth season of Line of Duty returns to our screens tonight, and fans are counting down the hours.
Tonight's episode of the police drama will pick up 18 months on from the last season, with the trio of anti-corruption officers from AC-12 back to investigate who is H.
Adrian Dunbar, Vicky McClure and Martin Compston will be joined by Kelly Macdonald, while this season will have seven episodes instead of six.
The show's creator Jed Mercurio and the cast have been tight-lipped on the details, with very few spoilers leaked ahead of tonight.
Brendan O’Loughlin, presenter of Big Breakfast on 98fm and one of the hosts of the Shrine of Duty podcast joined Susan Keogh on Newstalk Breakfast to discuss what we can expect this season and just what makes the show so addictive.
"I'm pathetically excited, it's a bit sad to be honest," Brendan said.
"The excitement built over the last five seasons and I think it really peaked with the last one...and I think this episode is going to break records in terms of viewership at the BBC."
He explained that throughout the seasons, the heat has been put on each character over suspicions that they may be H, the codename for the corrupt police boss or bosses that control the organised crime gangs.
"All we know about season six is very little, to be honest," he said.
"The dodgy cop that they're investigating this time is Joanne Davidson, she's played by Kelly MacDonald, over her handling of the murder of a journalist who's called Gail Vella, that's all we know."
Brendan said lots of fans have been contacting Shrine of Duty to share their thoughts on the show, including one person who sent a message yesterday discussing their theories behind a pair of earrings worn by a character in season four.
"One thing that the makers of the show and the actors keep alluding to is the fact that season six, episode one tonight is going to pick up a year and a half later from where we left off," he added.
"They're all alluding to that we're starting with a very different sort of layout, so people are thinking AC-12 has been disbanded or maybe one of the guys are no longer on the team.
"But we don't know and that's amazing."
The fact that there are no spoilers and that "we're all going to sit down at 9pm tonight and watch episode one", rather than bingeing a whole series, is like "ye olde times", Brendan said.
"They basically love to tease us, and we love to be teased," he added.
Line Of Duty is back on BBC One from tonight at 9pm.
Speaking to the same programme yesterday, Newstalk's John Fardy outlined his top five police dramas given the fact that Line of Duty has been cited as one of the best cop shows in recent years.
He described the series as "fantastic TV" but said it is "surprising" just how excited people are about its return.
John described his favourite police drama of all time as "the type of show that would take over your life".
You can listen back to hear John's top five choices here:
