Updated 1 hour ago Line Of Duty Series 6, Episode 5: The 12 Burning Questions We Now Have A major character's life hung in the balance as AC-12 made huge strides in the Gail Vella case. We don’t know about you, but we are currently drenched in sweat after that ridiculously tense ending to Sunday’s Line Of Duty. DI Kate Fleming’s life hung in the balance as she had an armed stand-off with Ryan Pilkington in the final moments of the episode, before two shots ominously rung out. The moment came at the climax of the most shocking episode yet, which also revealed DCI Joanne Davidson is related to former OCG boss Tommy Hunter – as many fans correctly predicted.