RETURN TO INJUSTICE! Across the Multiverse, Kal-Els are being murdered, and Val-Zod, the Superman of Earth-2, believes only one man can help: Jon Kent, Kal-El's son! Jon must cross dimensions to face the super-killer, including a trip to an Earth he's never seen...the world of Injustice! In this place, versions of his friends and loved ones are at war, and heroes fight each other for total control. Can the newly reunited Super Sons beat these insurmountable odds? And will Jon Kent not only save the Multiverse, but have any chance of returning to his own Earth? It's a battle for the soul of Superman as the Injustice saga cranks up the heat! Collects ADVENTURES OF SUPERMAN: JON KENT #1-6.