New Injustice trailer depicts 'Shattered Alliances'
The first Injustice game explored what would happen if Superman decided to abandon his moral code and instead enslave the world, with Batman and his team defeating Superman’s regime and imprisoning the Man of Steel at the end of the game.
It appears that Superman will be freed to once again attempt to dominate the planet, although who is behind Superman’s jailbreak is yet to be revealed.