Line Of Duty (BBC) Thank you for signing up to The Press and Journal newsletter. Something went wrong - please try again later. Sign Up Line Of Duty’s Martin Compston dons disposable blue gloves to collect evidence in a first glimpse at the upcoming episode of the crime drama. The last episode of Jed Mercurio’s BBC series ended with a cliffhanger over who has survived the stand-off between Vicky McClure’s DI Kate Fleming and rogue officer Pc Ryan Pilkington (Gregory Piper). The instalment ended with both characters pointing guns at each other, and shots were fired after the credits started to roll.