Series 9 Episode 4 discussion

[Hunted]

The symbolism in water - the glass of water in Harry's hand, de-salinisation, the Albany picture. I could be reading into nothing but is there an underlying current here?
Completely unintentional but the double-meaning in 'if you don't start knocking soon' from Harry to Ruth was hilarious and gave me a good giggle! C'mon Ruth we know who you want to knock around with! On Ruth, her 'out of office' performance was superb. She is seriously depressed though, as her little chat with Beth showed. Hopefully she can shake off some of this. I am worried for her safety as she has rumpled Lucas, he seems capable of anything at the minute.
Beth has really grown into her role, and it was a great performance from Sophia showing Beth finding her feet and making some mistakes as a new officer, but trusting her instinct. Her scenes with Kai were warm and rang true as a friendship which had been used for nerfarious purposes by her; but her humanity came through. Less smirking this epiosode too!
The picture of Lucas at the end intrigued me - could it be an aid to recognise for the Chinese to recognise him to arrange a meet,or are they hunting him down? Is the 'them' who Vaughan say are after him, the Chinese? Did Vaughan and Lucas get mixed up in something in Africa that pis*sed off Chinese involvement in African affairs.
The corridor scene between Lucas and Maya was slightly cringe-worthy (sorry Lucas fans) and the kiss felt forced. I am not sure if it's lack of chemistry between the actors or something to do with Lucas and Maya manipulating one or the other. I hope they don't overdo this in the next few episodes.