There are clearly gaps in our knowledge of super hero recent events. Mebbe they were on Fox. Anyway, Superman is dead! How the hell did THAT happen? Who is Cyborg? When did Khal Drogo eschew the steppe for the deep? watch Star Wars: The Last Jedi disney 2017 online free
The earth is under attack. No surprises there. This time it's Steppenwolf and a host of dodgy CGI's. Steppenwolf looks to be your standard or garden earth imperiler. I don't know why he is called Steppenwolf. Hermann Hesse might. Dunno. Haven't read it.. Logic would indicate that it was to segue into "Born to be Wild' but it didn't and the movie is the poorer for it.