When Brainiac sets his sights on planet earth, there's only one problem standing in his way: The Justice League! His answer? Use a time machine to send Wonder Woman and Green Lantern to the past, and to send Superman to the future! To rescue their fellow Super Heroes, Cyborg, Batman and The Flash must go on an intergalactic, time-travelling adventure before Brainiac can strike. Can they save their friends? Or will the Justice League become ancient history?
