DC Comics Classics Library: The Flash of Two Worlds #[nn]

In "Flash of Two Worlds! [Chapter 1]," Barry Allen, the Flash of Central City, finds himself unexpectedly whisked to Keystone City during a community performance—only to encounter a version of the Flash he’s only read about: Jay Garrick. As the two speedsters grapple with the shock of their shared identity across parallel worlds, Jay reveals a sudden surge in crime has shaken Keystone City, and he’s reached out for help. With no time to fully understand how they’re connected, Barry must decide whether to answer the call—before the danger overtakes them both.

In "Flash of Two Worlds!, Chapter 2," two Flashes—one from the present, one from the past—find themselves outmatched as a trio of classic villains from Jay Garrick’s history launches a coordinated crime spree across Keystone City. The Thinker, the Fiddler, and the Shade each pursue their own high-stakes goals, leaving both speedsters struggling to keep up.

In "Flash of Two Worlds!, Chapter 3," Jay Garrick and Barry Allen join forces after realizing they’re facing a shared threat—the Fiddler—only to find their plans complicated when the Shade and the Thinker uncover the truth: they’re not just up against one Flash, but two.

In "Double Danger on Earth!", Earth-2’s Jay Garrick races to Earth-1, fleeing a comet-induced crisis that threatens his world. With the help of Barry Allen, the two Flashes use Jay’s arrival as a lure to corner and capture two of Barry’s most dangerous foes.

In "Vengeance of the Immortal Villain!", Vandal Savage unleashes a deadly campaign against the retired Justice Society, forcing Barry Allen to journey to Earth-2. There, he joins forces with Jay Garrick to free the imprisoned heroes, sparking a renewed alliance among the JSA.