Damian is getting down to business. With his mech armor, or whatever you call that, he does a fly by, dropping gas pellets to help out Dick and Gordon with the Leviathan kids, and heads immediately to Wayne Enterprises, where his mother has Bruce caught in a death trap. Inside the safe at the bottom of the roof pool, Bruce manages to cough up a lock pick, as Talia taunts him, telling him what he could have been. Bruce, who hasn't said a whole lot in these past two issues, bluntly reminds Talia that he's not her father.
Before Damian reaches the tower, Tim enters the lobby, checking in on the situation, but Leviathan agents act as if everything is normal, until Tim realizes that the receptionist is wearing Ellie's tag, which is when Ellie yells out to him that it's a trap. Tim doesn't have a hard time beating off his attackers, until some guards open fire on him from the balcony. Tim gets Ellie to hide, does some acrobatics and knocks the giant quarter into the balcony, but the model plane he grappled onto gives out, leaving him trapped under it. With guards swarming him, Tim is saved by Damian who ends up fighting off the guards and a bunch of mind washed kids.
The gun fire gets a bit too much for Damian, but Dick manages to step in and take cover with his former partner. Knowing that they're about to enter a life and death battle, Damian opens up to Dick a bit, and tells them that he was his favorite partner, and they were the best, no matter what anyone says. Dick pats himself on the back, and enters battle with Damian, just like old times.
Things come to a halt as the Heretic arrives, holding the trigger to the world bomb. Both Dick and Damian try and take him on, but don't do much to the giant hulk of a man. The Heretic disposes of Dick pretty quickly, but before he can do anymore damage, Damian distracts him. The Heretic signals the guards to hold off, as he decides to face his brother/twin/rival on his own.
The two enter battle, and it's pretty one sided. Damian believes his mother to be listening and tries to get her to call him off, but The Heretic just knocks him into a nearby suit of armor. Meanwhile, Ellie grabs the trigger to the world bomb, which gets The Heretic's attention. As he approaches her, Damian shoots him with a crossbow, which literally does nothing to him.
The two begin fighting once more, with Damian unable to even stun his clone, who attempts to snap his "brother's" spine, but you know... robot spine. The guards then open fire with bows and arrows, many of which hit Damian directly. All he can do is spit blood into the eye of The Heretic, as he calls them all cowards. The Heretic throws Damian into a wall, and picks up a sword. In one final attempt, Damian tries to get Talia to call off her monster, but the only answer he receives is the sharp end of The Heretic's sword.
At the same time, Bruce finally gets out of the safe, as Talia continues to taunt him, claiming their son to be a flawed, failed experiment, and that he's losing the game. Bruce finally makes his way to Damian, but it's too late. Ellie just stands there, still with the bomb trigger, in shock, as Bruce cradle's his son's body. Even Talia sheds a tear, in what she describes as a "moment of weakness."