Line of Duty episode four recap: Top talking points from a thrilling instalment 

Well, that was quite an episode of Line of Duty. There were thrills, spills and heart-pumping drama. And that was just the look on Ted Hasting’s face when he was told he was being shunted into retirement. Hold your wisht as we delve into episode four 

 Kelly Macdonald and Vicky McClure in a scene from episode four of Line Of Duty.

Is Joanne Davidson really the big villain this season?

Kelly Macdonald’s character has been widely heralded as Ted and the gang’s major foe this year. However, there are reasons to believe she has been coerced into assisting the “OCG”. Not for the first time, we saw her breaking down under the strain of concealing the truth about the murder of journalist Gail Vella (and upset, too, about the refusal of mysterious uber-baddy “H” to reply to her encrypted reports).