"Survivors"--
Kara: 
"I just had my ass handed to me by a seven foot gladiator--" Good that the writers have her admit to not being all powerful.
The DEO releasing Mon-El into her custody...gee, no set up for romantic tension between these two....
Luthor: Allowing Kara access to the building? I think its a little more than obvious she knows Kara is SG, and that will not be used against her--but someone else...
Hank: Interesting that he continues to believe that he cannot fully connect / assimilate with humans--embracing the idea that differences matter, so seeking the bond of his own is a dream. 
Miss Martian: Did it really take Hank acting as the sacrificial lamb (Cap) for her to drop her petulant teenager act? 
Alex: Once again, the quickie connection between Alex and Sawyer. I hope they do not have Alex become a hypocrite in running around with Sawyer (making SG a third wheel), when Alex was bent out of shape about Kara wanting to spend time with Clark.
If Draga can toss Supergirl around like a rag doll, why would he blink at Alex with a pistol? 
Mon-El: For a guy who learned his civilization was destroyed, he's not too bothered by it all. 
Telegraphing Winn giving him the means to break out as a costumed character..and of course, that will lead to some sort of exploitation.
James: M.I.A. this week. The Guardian next week! 
Sinclair: "What have you ever given them? Black eyes?" "You can't stop gambling." She was correct in both cases.
Carr: "You didn't give me a story, you gave me a half baked idea." -- didn't Kara learn anything from Clark about writing stories?
NOTES: Sigh....yet another plot shamelessly ripped from other DC adaptations--in this case, 
"Grudge Match"--a 2006 episode of 
Justice League Unlimited, but with none of the panache of that great animated episode. 
Another swiped scene: Miss Martian straddle punching Hank moments before nearly killing him, but Hank's good-hearted resistance makes her stop to look within...someone send that back to
 Captain America: The Winter Soldier!
Line of the episode: Carr's 
"We're the fourth estate, not Reddit!" 
Mon-El mentions 
Warworld. I wonder if it will ever earn more than a casual reference....
Okay, how many times is an assumed protagonist revealed to be another alien in disguise by the end of the episode? That's two in as many weeks.