Classic cover by Murphy Anderson; the kind of set-up that just made you buy the comic.
The story: "The Super-Exiles of Earth!" by Gardner Fox, Mike Sekowsky, and Bernard Sachs. Evil duplicates of the JLA start a crime wave, ending with the real JLA being exiled from Earth(c'mon, won't France take them?)!
Turns out its all a plan of the nefarious Dr. Destiny, who has invaded the JLAer's dreams. They concoct a plan to return to Earth icognito, as their civilian identities--except for Aquaman, who has none. Feh.
Roll Call: Superman, Batman Wonder Woman, Aquaman, Flash, Green Lantern, Martian Manhunter, Green Arrow, The Atom
Notable Moments: Why Aquaman couldn't go back to Earth as Arthur Curry always bothered me--its not like there's some big Ellis Island in the sky, checking the I.D.s of people coming in from outer space(although this is the DC Universe...)! He could've put on a suit and said "I'm the son of a lighthouse keeper" and participated.
The JLA decides to expose themselves to some "Amnesium" that Supes has back in the Fortress, so they can erase their memories of each other's secret identities. Where was this during Identity Crisis?