A MYSTERIOUS BEING FROM THE FUTURE APPEARS! The Challengers continue to investigate the after effects of the Darkseid shockwave. The latest mission draws Prof Haley along with Ray Palmer (The Atom) to a remote and far-reaching part of the world where hyper-intelligence seems to have infected a long-missing individual from DC Comics past. Things turn even stranger when a being appears to Prof and the Atom claiming to be from the future and calling itself The Optimum. The Optimum promises untold scientific secrets...that is, if it could have a glimpse into the Justice League's top secret Atom Project...