Superman-Prime continues his psychotic search for his perfect Earth, having come to Earth-15. Her begins by attacking and killing, that Earth's Lex Luthor, Superman (Earth-15) and Superman's pregnant wife.

Somewhere in the Multiverse, Green Lantern and Troia discuss their mission and Kyle's self-doubt. Kyle mistrusts Red Hood, but Donna responds that Bob the Monitor insists that he is needed. Donna reminds Kyle that they must stick together and can achieve their goals.

On Earth-15, the heroes there mobilize to stop Superboy Prime. However, he decries them as pale imitations of their predecessors who have grown soft from the peace they have achieved. They prove to be no match for Superboy Prime.

Beneath Bludhaven, Desaad who has taken control of the Firestorm Matrix and Firestorm, attacks Karate Kid and his companions while Darkseid looks on from Apokolips. There he tells Mary Marvel that he needs a sorceress. She rejects him and the two begin fighting.

In Bludhaven, the Atomic Knights come to the aid of the heroes, using a device to separate Desaad from Firestorm. Desaad flees back to Darkseid, interrupting the conflict between of him and Mary, who uses the distraction to escape. Darkseid wants her back and Eclipso offers to bring Mary back to him.

Back on Earth-15, Superboy Prime, having defeated the world's heroes, drills down to the Earth's core and causes the planet to explode. He leaves, vowing to find his perfect Earth.