The film brings together iconic DC superheroes - Superman (Henry Cavill), Batman (Ben Affleck), Wonder Woman (Gal Gadot), Flash (Ezra Miller), Aquaman (Jason Momoa), and Cyborg (Joe Martin) - to form the Justice League. Their mission is to save the world from the powerful villain Steppenwolf (Ciarán Hinds) and later, Darkseid (Ray Porter), who seek to destroy Earth and rule the universe.