The villains in Luthor's camp continue to argue over what to do about the imprisoned Martian Manhunter. Also, Thunder and Lightning, two former heroes who had perhaps been falsely imprisoned, are caught by Bane attempting to rescue him. They are likewise held prisoner.
As tensions heat up, the Joker begins to argue with and satirize Lex Luthor's leadership, leading them into a heated conflict. After Luthor severely berates and provokes the Joker, naturally, the Joker backhand slaps him across the face.
In Vandal Savage's camp, tensions grow between Savage and the four ladies he has brought with him, each of whom he has promised a position of Royalty in his proposed new utopian kingdom to, as his Queen. The ladies, while growing disgruntled, appear to be unaware of the promises he's made to the others.
Back in the main camp, Luthor and the Joker prepare to finally have a fistfight between them, an all-out brawl to determine which one will retain supremacy. The fight is long and bloody, and although Luthor arguably gets in more hits, the Joker finally wins due to his bizarre complete tolerance for pain.
As the fight ends, it is revealed while all of the border guards had been watching the melee, not only have an alarming number of the planet's bizarre robot protectors resurfaced, but there is also a gigantic invasion of incoming Parademons by Boom Tube.
The events from this issue or series are related to the Countdown to Final Crisis. Countdown was a weekly series spanning exactly 52 issues, and tying in with plots across many story arcs all over the DCU. This template will automatically categorize articles that include it into the Countdown Crossover category.