In case you didn't guess from the headline - this article contains spoilers, so if you're yet to finish watching Line Of Duty and want to enjoy it spoiler-free click away now
Well, it's been ten years and six seasons but it looks as though the identity of Line Of Duty's mysterious H has finally been revealed.
Viewers have followed the work of AC-12 for a decade, as they attempt to clamp down on bent coppers, and now they've got the answer to the show's longest running question.
In the end, DCI Ian Buckells was unmasked as H, leaving some viewers disappointed.
One person tweeted: "That was simply the worst episode and worst ending Line Of Duty have ever and could ever have done."
Another said: "10 years for that anti climactic ending. Mother of God."
A third asked: "We waited a decade for Buckles to be H?"
Another posted: "NO WAY IS BUCKELLS THE TOP LYNCHPIN OF ALL THIS."
Buckells was found to be the 'fourth man' after DI Matthew 'Dot' Cottan, Senior Legal Counsel Gill Biggeloe, and ACC Derek Hilton were revealed as the three others involved.
With H finally unmasked, the future of the show hangs in the balance, with stars Vicky McClure and Martin Compston saying they 'genuinely' don't know if there will be a seventh season or not.
Speaking on The Jonathan Ross Show, McClure said: "Genuinely don't [know]. We don't know anything, not just saying it for effect."
While Compston added: "That's nothing different for us. Jed always takes months after... there's stuff above our pay grade, analytics, figures and all that kind of thing that comes in. He always takes time off. But I think it is important to say, I think this natural story arc that we've been on for the last six years..."
To which Ross pointed out: "That's coming to an end."
Prompting Compston to continue: "We won't come back just for the sake of it. That's for sure. We'll come back if there's a story to tell. But, so as well, if it ends well maybe sometimes it is best to leave it. But, so, genuinely we don't know."Featured Image Credit: BBC