A brand-new era of the begins here! Comics legends Scott Snyder and Jim Cheung launch the Justice League into a cosmos-shaking mystery that will draw out their most terrible foes...in ways our heroes couldn't possibly imagine! In this debut issue, Martian Manhunter struggles to protect the team from an incoming threat that will shatter the world as they know it, while a familiar face strikes out on a dark path... FINAL COVER MAY VARY. ALLOCATIONS MAY OCCUR.