As End Draws Near...Mother Of God!

DI Arnott’s clue series could be last. Fans close.. but Hastings not ghost. Stars will face legal action if they spill the plot, but is it all over?

- Ed Gleave

Line Of Duty stars are sworn to secrecy but Martin Compston hints this is the last series.

Line Of Duty bosses are desperate to keep the season finale top secret – in what could be the last ever series.

Stars had to sign contracts banning them from saying what happens and will face legal action if they breach it.

And all scripts were watermarked so if one gets into the wrong hands bosses can investigate who it has come from.