He imprisons and takes the place of his evil positive - matter counterpart .
Alexander Luthor , the lone hero from the Antimatter universe , breaks the barrier between Earths 1 and 2 , seeking the JLA 's help .
Alexander Luthor imprisons and takes the place of Alexander Luthor 's evil positive - matter counterpart .
Alexander Luthor , the lone hero from the Antimatter universe , breaks the barrier between Earths 1 and 2 , seeking the JLA 's help .