Warner Bros. announces the production of the animated movie Justice League: War, based on the New 52 Justice League comic series.
The official voice cast for Justice League: War is revealed, featuring actors such as Justin Kirk as Batman and Jason O'Mara as Batman.
Justice League: War is released on Blu-ray and DVD, marking the film's debut to the public.
Reviews and critical reception of Justice League: War are published, praising its action sequences and animation style.
Steppenwolf begins attacking various locations on Earth to collect the Mother Boxes, causing widespread devastation.
Bruce Wayne discovers Steppenwolf's presence and starts gathering evidence about the threat posed by the New God.
Bruce Wayne decides to recruit Clark Kent (Superman) to help combat the looming alien threat.
Superman agrees to assist Batman in dealing with Steppenwolf's invasion and begins training with Batman.
Diana Prince (Wonder Woman) confronts Steppenwolf and aids Batman and Superman in the effort to stop him.
Barry Allen, the Flash, is recruited for his speed and joins the growing team to fight Steppenwolf.
Arthur Curry (Aquaman) reluctantly joins the team, motivated by the need to protect the Earth.
The Justice League successfully defeats Steppenwolf, destroying the Mother Boxes and securing Earth's safety.
