Line of Duty's huge series six finale is just days away - as, it would appear, is the truth about the mystery 'H'. Viewers have been waiting for what feels like forever to unravel the mystery of The Fourth Man, AKA the final 'H'.
The mystery corrupt officer linked to all things OCG is tipped to be exposed on Sunday, with the three other names already revealed across recent series.
Dot Cottan's dying declaration as The Caddy is what alerted AC-12 and viewers to this mystery, after they worked out he was communicating via Morse Code.
Amid theories that this might never have been correct, hopefully Sunday will supply the answers we need. But until then, Ted Hastings is still struggling to prove it isn't him - and now some fans think they have
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