In a world where inexperienced superheroes operate under a cloud of suspicion from the public, loner vigilante Batman has stumbled upon a dark evil that threatens to destroy Earth as we know it. Faced with a threat far beyond anything he can handle on his own, the Dark Knight must trust an alien, a Scarlet Speedster, an accidental teenage hero, a space cop, an Amazon Princess and an undersea monarch to help him. Can Batman, Superman, the Flash, Cyborg, Green Lantern, Wonder Woman and Aquaman put aside their differences to save the world? Or will they destroy one another first?