
Back in the Hall of Justice, we see what we believe to be Hawkman land amongst a crowd of fans. Batman, however, believes it was the electric shock he received during the fight. Once the player has defeated Batman, Robin addresses a speech to Batman, assuming that is what breaks his mind control. Upon viewing said spaceship through a telescope, Batman falls victim to Brainiac's mind control and begins attacking Robin and Alfred. Back in Gotham, Batman and Robin are attempting to find out why Killer Croc would steal a map of the sewers, when they are interrupted by a warning about an incoming UFO. Upon arrival at the Watchtower, he meets with Martian Manhunter. In the Hall of Justice, we are shown Green Lantern heading through the new Slideways Teleporter, which allows you to travel to the various hubworlds in the game. When they defeat Killer Croc, it is discovered that he is working with many other villains from the Justice League lore. Meanwhile, on Earth, Batman and Robin are busy pursuing Killer Croc in the sewers.


They question why they have been called there, when Brainiac shows up and kidnaps them with mind control. Taking place a week after the events of Lego Batman 2, the game opens on a space scene, with the representatives from all of the various Lantern Corps.
