‘Line of Duty’ Season 6 Finale Watched By 13 Million ‘Disappointed’ Fans, Demands Season 7 Release Almost 13 million viewers were disappointed with the season six finale of "Line of Duty" which aired last night on BBC.
'Line of Duty' series 4 - theories about who is Balaclava Man Theories about who is Balaclava Man has surfaced as "Line of Duty" series 4 air date nears.
