Like most Talons, Felix Harmon was picked from Haly's circus, but unlike most Talons, he needed no indoctrination on the art of killing, he was already quite the psychopath. Jump to the present and Calvin is leading Batman into the Court of Owls' secret base under the library, but there's no one to be found, and all that's left if a message left in blood for Calvin, from his BFF Felix that simply says: "You're next."
The Court has once again gone into hiding, but they're none too pleased with the messy work they're getting from Felix, as the grandmaster Wycliffe decides to detonate the cryo-bombs they've planted in the giant Talon's head. Too bad Felix mutilated himself to remove them a few issues back, and the monster officially goes AWOL.
Elsewhere, Lucius Fox, an old friend of Casey Washington, has vouched to both Bruce Wayne and Batman for Casey, who he's taking care of in his labs. Turns out last issue Felix crushed the bones in one of Casey's arms, and there were no other options but to amputate... and she's missing an eye. All this doesn't matter to Casey, who wants one thing on Calvin's mind, and that's to get her daughter back, then deal with Felix Harmon.
Batman meets Calvin outside and lets him know that there's no trace of Bane or Santa Prisca, as for the Court, Batman offers up what info he has on them, on the condition that once Calvin finds them, he gets the call. After that, Batman makes sure to let Calvin know that however this goes for him, it's his last mission. Period.
Felix Harmon then returns to the old orphanage where his legend as the Gotham Butcher began. Inside, he finds Sebastian Clarke waiting for him, who manages to dissuade Harmon from killing him, and offers up a new plan, which is basically say "fuck it" and obliterate Gotham, the Court, Calvin, Casey, Batman, all of it. This sort of chaos being right up his alley, Harmon decides to go along with it.