Without a doubt, the best comic released this past week. Without spoiling too much of the story, someone is messing with Superman's mind big time. Last week, he thought he was fighting Brainiac, and the issue ended with HUMAN blood on his hands, and the JLA confronting him as to his actions. This week, the same scenario was played out, but instead of Brainiac, it was Darksied he was fighting, and at the end of the issue, you see who he truly was beating the stuffing out of, and it is a jaw dropper.
I just read it. Man was I shocked. That's 4 surprise endings so far this week that I've read. Avengers, Hawkman, Ult FF, and this. And I still have to read about 6 more books.