This animated feature, based on the New 52 comic, re-tells the origin of the Justice League, with a younger group of heroes. When we're introduced to Batman he's on the news as some sinister vigilante. On the streets of Gotham a woman misses her bus and is abducted by what looks like Batman--but we see it's a hideous, big-fanged alien when Green Lantern shows up to rescue her. Then the real Batman appears. The two heroes don't get along, probably because their personalities are so much alike. The alien explodes--but not before he plants a strange, square device. They try to analyze it but the only readings they get is that it's alien. Meanwhile, at Star Labs in Metropolis, scientists are examining a similar device that was brought to them by The Flash. In Washington, D.C, a crowd is protesting against Princess Diana, aka Wonder Woman, because of the property damage she has caused in her battles. You see, in this reality people don't like the costumed heroes.
Green Lantern and Batman go to Metropolis to seek out Superman, who they've never met. There's a misunderstanding--and a brief fight. It comes to a halt when both Batman and Superman reveal they know each other's secret identities.
Cyborg is created during an alien attack when a scientist's football hero son, Vic Stone, is mortally wounded. To save him, his father injects experimental nanites into his bloodstream. Not only does this make him stronger, it gives him the ability to talk to other machines--including the alien devices. What they do is open gateways around the world, from which emerge these flying aliens. And the villain? It's Darkseid, who has been harvesting planets and transforming their inhabitants into these mindless creatures. Wonder Woman and the Flash show up and also joining in is Shazam, who acts like a kid because, well, he really is a kid.
It's always seeing an updated/different version of a familiar story, but I missed one of the original founding members, Martian Manhunter, and much prefer the JUSTICE LEAGUE animated series from a decade ago.