Another Superman has fallen.
Across the multiverse, Kal-Els are being murdered. Val-Zod, the Superman of Earth-2, believes only one man can help stop the killing—Kal-El's son, Jon Kent!
Jon will have to step across dimensions and face the killer of the Kal-Els, the monstrous Ultraman, the man who kidnapped and tortured him for years.
And Val-Zod is not acting alone to save the Supermen. Who is the mysterious woman alongside him? And what is her shocking connectio ...