JLA: Earth 2 is a ￼graphic novel written by Grant Morrison with art by Frank Quitely, published in 2000 by American company DC Comics. It follows the first post-Crisis encounter between the Justice League of America and their evil counterparts from an antimatter universe, the Crime Syndicate of America. Title The Crime Syndicate traditionally originated from Earth-3, but as the concept of a multiverse was eliminated in Crisis on Infinite Earths, so was the pre-crisis Earth-3. At the time JLA: Earth 2 was published, generally only two universes existed: a primary universe made of ordinary matter where the mainstream stories took place, and an antimatter universe where the Crime Syndicate originated. Alexander Luthor in this story was from the antimatter universe and he designated the primary universe as Earth 2 upon discovering it, hence the book title. DC Comics later revived the concept of the multiverse in Infinite Crisis and 52, and further revised it with the onset of The New 52 and DC Rebirth. As a result, the Earth 2 concept introduced in this book no longer exists and the term Earth 2 has a different meaning in the current continuity. Plot summary Alexander Luthor, the lone hero from the antimatter universe, breaks the barrier between Earths 1 and 2, seeking the JLA's help. He imprisons and takes the place of his evil positive matter counterpart. Meanwhile, the JLA investigate a plane crash where all the dead passengers have hearts on the right side of their bodies, and money bearing the slogan "In Mammon We Trust" along with the face of Benedict Arnold. This leads them to Alexander Luthor, who informs them of the other Earth and asks for 48 hours of their time to help the oppressed world. The JLA, except for Aquaman and the Martian Manhunter, follow Luthor to the alternate Earth. The Crime Syndicate are introduced. Each is an evil counterpart of a JLA member. Ultraman calls a meeting, discovers Luthor's absence, and begins plotting to take over the positive matter universe, while Power Ring and Johnny Quick discuss the possibility of counterparts to themselves. Green Lantern forms a force field around the moon, trapping the CSA in their lunar base. The JLA and Luthor begin to set the world right. Batman works to clear Gotham City of crime with the antimatter-universe version of his father, police Chief Thomas Wayne, who survived the famous shooting that