Supergirl--
"Dark Side of the Moon"
SG/Kara: "I wish my day today life didn't have to have a disguise..." / "trade off" sort of rings hollow as she spends 99% of her time as Supergirl. Of course, this also seems like a line teasing SG will want to live on Argo (teaser bears that out) and/or considering telling her Lena that SG & Kara are one and the same, since she (Lena) was the last person to actively call her out on having a double life. Even if that happens, that should not erase the real ethical issues they have with each other.
Alura: Several references to her husband's heroism in saving Argo, but it would have been cool to see a flashback to his desperation during those last days.
Alex: The conversation with Collins was an interesting bit of closure, with Collins' depression / drinking his sorrows away proving he has a conscience after all.
Lena: "Sam or the world" leaves only one choice, but in the event the black rock works, that means the Kryptonite debate will continue--even if Supergirl takes a (temporary) leave of absence.
Reign: "Will you still need each other?" Telegraphing. See the SG/Kara entry.
"There is no one to pray to. There is no God..." Aggressive atheism. Not a surprise from one representing he opposite of hope.
NOTES: The Argo city CG....so cheap.
The Argo council's bickering was a soft play on just about every "last days of Krypton" argument scene ever filmed. What's good about it is that it illustrates that the culture never seems to make the right decisions at the most crucial moments--until now.
Alex having Ruby read a book on Ada Lovelace is part of the showrunners' nod to important women in history as inspiration, but her historical status has come under serious question by some modern researchers who reached other conclusions about her work. They should have picked someone like Maria Gaetana Agnesi, who left a large, uncontested footprint for mathematicians.
The teaser of Supergirl leaving earth for Argo...come on, that's not going to last, but James saying, "we're down one bulletproof superhero" naturally leads to the question, "will Superman finally show up for the final act of this Reign plot?"
GRADE: B