Justice League is also known as the justice of the Justice Union, is a collection of superheroes with extraordinary strength to rescue the world from the dark forces in the DC universe.This time, mankind faces the devil extremely cruel - Steppenwolf.He is one of the effective minions of Darksied - an evil and also the greatest enemy of the Justice Union. & Nbsp;Steppenwolf has flaunted his superhuman power, spread fear and darkness to the country of Themyscira - the homeland of Wonder Woman and humans.