In this episode, the Cadmus story line begins to take shape but the Guardian plot thread fails to deliver any valuable content, contributing little to the narrative. The problem with James story line is it lacks credibility and his clear cut, 'Guardian is a hero, not a villain', motif is that he cannot call himself a hero just because he's thought, 'Being a hero sounds pretty cool, I'll do that.'
It's a plot point that lets the episode down and needs to be wrapped up before the mid-season finale. The conflict between Kara and Cyber Superman was very entertaining but I didn't understand why he had to so straightforwardly reveal, 'I'm not Hank Henshaw, I'm cyber superman.' A little bit of mystery as to who he was would have made his presence more gratifying.
Also, J'onn's discovery that he's mutating into a White Martian was an effective technique to explore his character. Imagine if we were infected with our own worst enemy's blood? It would most definitely cause psychological damage, which makes his character's story arc worth investing in.
Kara and Mon-El's interactions were suspenseful because there were more revealations to Mon-El's character which revealed a more honest and sensitive side. It was particularly harrowing to see Supergirl drained of her powers, her blood being visible and the use of flickering camera shots added to the disorientation and powerlessness she felt.
Even though, Cadmus feels like it's going to become a better crafted villain I would like to see Lillian Luthor reveal some vulnerable and emotional aspects to her character rather than her approach at being a stereotypical insane scientist who believes she's saving the world. Maybe a flashback to her past could reveal why she has dedicated her whole life to experimenting on aliens?
The reappearance of Jeremiah contributed to a very moving scene where Jeremiah expressed how proud he was of Kara had become. However, I wasn't convinced that's he managed to avoid experimentation all these years.
I was glad to see that the aftermath of Alex's humiliation has made her stand up to Maggie. It truthfully depicted the awkwardness that can follow on from a complicated situation such as this. I'm still hoping something will happen because even though it's very sweet to see them playing pool, there needs to be more conflict between them if their relationship can continue to develop.
This episode succeeded in driving the action towards Cadmus' ultimate goal and the vulnerability that Supergirl experienced was gripping and tense. Alex's continued struggle was very effective in showing the after effects of humiliation and her sense of loss.
Again, James story line failed to rise to the quality of the remaining narrative but did manage to explore a fraction of how Kara and her friends might be pulled apart when she discovers they've been lying to her about Guardian's identity.