CantheJusticeLeagueprevailagainstanunstoppableintergalacticmachinewiththepowertobendtimeitself!?Untilnow,theJusticeLeaguehastriumphedovereveryfoewhohaschallengedthem.Thistime,theyfaceBrainiac,asuper-intelligentinvulnerablemachinewhosemadquestendangersalllifeinthegalaxy.WhenBrainiaczapsSuperman,WonderWomanandGreenLanterntodifferentplacesintime,theraceisonforBatmanandTheFlashtore-assembletheJusticeLeague