DCI John Luther is still on the job - ex-wife Zoe's boyfriend Mark North doesn't pursue the assault charge - and he now investigates the murder of two police officers who were lured to site by a 999 call and then shot. CCTV footage suggest that someone with a military bearing was in the area and it leads him to Owen Lynch, a former Royal Marine who was discharged due to psychological problems. His father Terry, also a formal Royal Marine, is in prison for having killed a police officer some 18 months before and Luther believes he's out for revenge. Meanwhile, Alice Morgan contacts Luther and lets him know that she has decided to investigate him. She also threatens Zoe.
Did You Know?
The unit that both Lynch's were assigned to (46th Commando, Royal Marines) was an active unit from August 1943 till January 1945. See more
Luther said that the Army had left Owen Lynch high and dry; Royal Marines belong to the Royal Navy, not the British Army. See more
I heard about the dead policeman. I was worried about you, John.
DCI John Luther
About what, that someone else might get me?
References America's Next Top Model