Line of Duty

Craig played DI Matthew "Dot" Cottan in the first three series of the hit BBC police drama.
Fans can't agree on what the message means – or whether it's a red herring.
The latest revelation could mean there's a massive connection going back to series one.
One popular fan theory was also put to bed, while we saw the returns of Jimmy Lakewell and Lee Banks.
If you were wondering who the man that killed the other guy in his prison cell is, allow us to explain.
But with the current series scoring mega ratings, the Bafta-winning screenwriter might be in the minority.
From Cottan's "urgent exit" to DI Denton's death, what has topped our countdown?