The JSA is back!
The story: "Crisis on Earth-Three!" by Gardner Fox, Mike Sekowsky, and Bernard Sachs. We are introduced to the Crime Syndicate and the concept of Earth-Three, a world where all the major events of our Earth are different--Abe Lincoln shot Pres. John Wilkes Booth, England won freedom from the United States, etc.--and there are no superheroes, only villains!
The Crime Syndicate and the JLA square off twice, once on Earth-One, where the JLA wins, and once on Earth-Three, where the Crime Syndicate wins. Since they are evenly matched, they decided to fight on neutral ground--Earth-Two! When the bad guys discover that world has superheroes, they decide to take them on instead!
Roll Call: Superman, Batman, Wonder Woman, Flash, Green Lantern
Notable Moments: The JSA returns in what will be a yearly event--the JLA/JSA team-up, one of Fox and Schwartz's most ingenious plot devices.
The Crime Syndicate was another neat idea, though I never understood why there wasn't an evil duplicate of Aquaman. Hmmph.