Between the Lines S02E12 - Big Boys' Rules, Part 2

Clark, Naylor and Dilke attend Harris's funeral, as does Trevor Bull. The official report has exonerated Special Branch of Harris' death and Clark is told to back-pedal on Deakin. It turns out that Deakin has funded works at Bull's house, and Clark puts this to Bull seeking the dirt on Deakin, to no avail. Instead of going to Mo's promotion party, Clark goes round to a safe house to see Angela Berridge, only to find Deakin there. He is told that Deakin has been freelancing for MI5 and if he goes down, so will Angela. Bull meanwhile has dug up a pump-action shotgun and has shot a police officer who came to investigate. Ignorant of Bull's actions, Deakin blackmails Clark into "fixing" him but after Clark has left, realises he may need assistance.