Fan Casting JUSTICE LEAGUE

When a collection of mysterious extraterrestrial artifacts has been discovered, an old ally of the Krytonians known as Darkseid comes to Earth to retrieve the artifacts and start an intergalactic civil war. Stuck without any other solutions, Clark Kent and his former rival Bruce Wayne decide to increase their powers by recruit the rest of world's greatest heroes in order to put an end to Darkseid's schemes and save the universe