232 pages; hardcover.

Rated T

The JSA are back in their first new series in years, from the superstar team of writer Geoff Johns and artist Mikel Janín! The world's first and greatest superheroes return! Or do they? A long-lost hero from the JSA crashes into our era with a grave warning...but it's too late. A mysterious and malevolent enemy has invaded the entire history of the JSA, and an all-new team must come together to defeat it. But what deadly secret does this messenger from beyond keep? Where are they from? And why is all of this happening now? Only the Time Masters know... This volume collects Justice Society of America #1-6.