Line of Duty season 6 episode 7 is going to be the final one for the police procedural drama. The mystery surrounding "H" will be the major focus here, given that his identity remains unknown until now. The truth about the character may finally be revealed and it could further drive the story in the future.

In Line of Duty season 6 episode 7, the AC-12 races against time to unmask the real identity of H. He is the Fourth Man (or Woman) who commanded corrupt officers and responsible for Gail Vella's (Andi Osho). However, some forces may try to cover up everything.

The person behind H has been a huge mystery for quite some time now. There are speculations that he's actually one of the AC-12 members, with some suspecting that it's Superintendent Ted Hastings (Adrian Dunbar) -- largely because of the clues found tied to him in the past.

H is also known as the "Fourth Man" or "Woman" and deemed to be one of the most notorious people out there. Line of Duty season 6 episode 7 could provide some information on who this person really is, and the revelation may also come as a surprise to many.

Yet, there is a chance that the mystery surrounding H won't be entirely solved and it'll continue in the next installment. There could be unexpected turns that could likely hinder the revelation about his real identity. After all, this person knows how to hide beneath the surface.

The promo of Line of Duty season 6 episode 7 also teased the AC-12's potential clash against H. The clip further hinted that "every investigation has led to this," which is a clue that they're closing into learning the real identity of H.

The team must work together as quickly as possible to uncover this mysterious character, who's been leading a corrupt group of officers. But then, all of them must be prepared for the action as some may not make it out alive and will follow Ryan Pilkington (Gregory Piper), who died in the previous episode.

Meanwhile, the police procedural drama hasn't been renewed for season 7, but fans were certain they'll be getting the announcement a few weeks after the show's conclusion. The upcoming finale may leave a massive cliffhanger leading to more stories to tell in the future.

Line of Duty season 6 episode 7 is set to air on Sunday, May 2, on BBC.