Line of Duty series five will conclude with a “nail-biting” 90-minute finale next month, with the promise of “closely guarded secrets” being revealed.
The BBC announced on Thursday that the current run of episodes will culminate in a feature-length programme on May 5.
What exactly the “closely guarded secrets” are is being kept tightly under wraps, but it is possible that fans will finally discover the true identity of H during the final hour and a half of series five.
The shady figure has been causing chaos with his legion of criminals and bent coppers, currently in contact with an organised crime group which has been infiltrated by undercover officer John Corbett (Stephen Graham).
Last week’s episode led fans closer to the real truth about H, with more theories sure to emerge as we head into the fourth episode this weekend with AC-12 continuing to dig deeper.
The BBC is no stranger to extending episodes for series finales, with Jed Mercurio’s other drama, Bodyguard, ending with a 75 minute show last year.
Series three of Line of Duty also concluded with a 75 minute episode, meaning that this year’s finale will be the longest episode the drama has ever aired since its inception in 2012.
The current series has become the biggest drama of 2019 so far, with more than 7 million people tuning in for the gripping opener.
An average of 7.8 million viewers tuned in for the first episode at the end of March, with a peak of 8 million. The show achieved 39 percent audience share.
The police thriller has also proved to be a major hit with younger viewers, with the BBC stating that only FA Cup coverage from January 25 has been more popular with the 16-34 demographic.
Line of Duty: Series 5 (2019) - In pictures
Line of Duty is on BBC One, Sunday at 9pm
