In the aftermath of “The Infected,” Batman and Superman create new measures to prevent hidden and dangerous super-villain plots in the future. Using new technology to track villains throughout the DC Universe, the Dark Knight and the Man of Steel are startled to discover that General Zod has returned to Earth—and that his new target is...Ra’s al Ghul! What is Zod’s plan, and what does it have to do with the destroyed bottle city of Kandor?