Spinning out of Absolute Power and the DC All In Special, the devastating Darkseid shockwave has shattered the DC Universe, ripping through the fabric of time and space! Now, it’s up to one fearless team of super-scientists to face the chaos: **THE CHALLENGERS OF THE UNKNOWN**. Tasked with running day-to-day operations at the Justice League’s massive Watchtower in orbit, Ace Morgan, June Robbins, Prof Haley, Red Ryan, and Rocky Davis must join forces with Superman, Batman, Wonder Woman, and the entire League to seal galaxy-threatening rifts. But lurking in the shadows is a mysterious enemy from the Challengers' past, with a deadly connection to the godshock that could put the entire DC Universe on borrowed time.
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