Line of Duty has announced a major change to the series ahead of its return on BBC next month – there will be an extra episode! 

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Taking to the official Twitter account, the BBC drama teased fans with the news alongside a short clip showing DS Steve Arnott (played by Martin Compston) and Superintendent Ted Hastings (played by Adrian Dunbar) discussing an upcoming case. The caption read: "Listen up, fellas. When the gaffer asks for more, you better deliver."