As @IstandwithJackieWeaver says
The rest of the series is going to be AC12 and Kate figuring out what's been going on. I suspect we're going to have a race to catch Ryan with someone being in mortal danger at his hands as the denouement of the series. We'll find out who H is shortly before this, but that won't be the crux of the story by then
Is Steph going to be the one in danger & Ted can't help her so it's left to Steve to save the day?
Also what's the background/story with the new DS Chris Lomax?
(Every time I see Perry Fitzgerald in LoD I half expect Mobeen to come galumphing through the door. Perry played PC Harper in Man Like Mobeen)
Is it relevant or what is the relevance of the camera lingering on DS Lomax when he was sat at his desk twirling his fidget fiddle toy around in his hand?
And is there are relevance to Buckells having a golf caddy in his office?
Finally Vicky McClure & Perry Fitzgerald have been mates for years in real life.