SOME Line Of Duty fans reckon they'd already cracked the case of who H was before last night's finale after spotting a series of clues.
BBC One viewers were left on the edge of their seats as the identity of The Fourth Man was revealed - but several eagle-eyed fans were far from surprised at the plot twist.
Series six of the hit BBC crime drama concluded on Sunday evening with the revelation of bent copper H's identity. The show, created by Jed Mercurio, finally revealed the fourth member of a network of corrupt officers was Detective Superintendent Ian Buckells.
However, fans say they had picked up clues it was the over-promoted but seemingly under-talented cop all along. THE ONLY SURVIVING SENIOR OFFICER The incompetent detective, played.
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