In the 31st Century, humanity has spread its influence across the stars and in an age where heroes are in dire need, the Justice League is reformed for peacekeeping across space. Project Cadmus, a genetic engineering corporation, had held the genetic material of the greatest past original Justice League heroes for over a millennium and Wonder Twins (Teri and Terry) used those samples to recreate Superman, Green Lantern, Batman, Wonder Woman, and The Flash. Using advanced bio-engineering, the duo enabled the creation and survival of duplicates of the five superheroes, but with only fragments of their memories, experiences, heroic mentalities and powers. In desperation to contain a growing intergalactic threat, Cadmus presses on with their Justice League 3000 experiment with the objective of restoring interstellar order.