Much of the plot (Kara's arrival on Earth, her time with the Amazons, the kidnapping by Darkseid) is actually a review of the introduction of the modern incarnation of "Supergirl" as seen in earlier issues of the "Superman/Batman" comic. This is currently no longer considered canonical after DC's reboot in 2011 due to Supergirl's origin being changed in the "New 52" storyline when the issue was released in September 2011. See more
In the final battle, Darkseid Omega Beams Kara into unconsciousness. As he leaves her, she's lying face-up. But when Superman sees her, she's lying face-down. See more
Kara, when I first came here, I was confused too. Able to see into the past, the future, yet not having a clue what to do with my own life. A harbinger for everyone but myself. Diana took me in without hesitation. If you need someone to turn to, you can trust her.
You've all made me feel so welcome. Especially you, Lyla. I feel like you're the only friend I have right now.