Ultraa eventually decides Earth Prime was not ready for superheroes and accompanies the League back to their world .
Ultraa retaliates to this attack , and is mistaken for a villain by the Justice League , who are visiting from Earth One .
Ultraa eventually decides Earth Prime was not ready for superheroes and accompanies the Justice League back to Justice League 's world .
Ultraa retaliates to this attack , and is mistaken for a villain by the Justice League , who are visiting from Earth One .