Tommy searches for an alternative cure to Ruby's condition, whilst Ada takes charge of the company in his absence.
This is strong character-driven episode with memorable moments for a number of Shelbys.
Tommy said 'I have no limitations' at the start of this season and in this episode he is portrayed as trying exert his usual influence and control in a desperate situation. This for me is the strongest aspect of the plot thread about Ruby's illness and feels quintessentially how this character would react. How it concludes makes perfect sense for his character arc. Cillian Murphy and Natasha O'Keefe are great in these scenes.
The subplot involving Ada has plenty of strong moments for the character and the best of them are probably the exchanges with Nelson, Mosley and Diana. I'm not sure how many of these scenes were originally intended or might have been reconfigured from Polly's character, but Sophie Rundle does a great job depicting the character asserting herself.
Arthur's trip to Liverpool goes in an unexpected direction for the character. For me it depends what follows as to how significant his exchange with the character Hayden Stagg turns out to be.
As ever the cinematography is strong and the art direction is spot on. The slow motion strutting is cheesy as ever, but if you like that style you will enjoy the Liverpool scenes.