Warning: Possible spoilers for "Justice League" ahead, if you consider something from a trailer a spoiler. 

Comic-Con attendees got the first look at a trailer for "Justice League," but those who couldn't make it to San Diego were able to watch it from their couches soon afterward.

In the 4-minute-plus clip, Wonder Woman (Gal Gadot), Batman (Ben Affleck), Aquaman (Jason Momoa), Flash (Ezra Miller) and Cyborg (Ray Fisher) all come together to show their stuff in a world still mourning Superman. And things are about to get worse, because Steppenwolf (Ciarán Hinds) is on his way.

"One misses the days when one's biggest concerns were exploding, windup penguins," says Batman's loyal pal Alfred (Jeremy Irons).

"Honestly, I think we're all gonna die," says Aquaman bluntly.

But at the very end of the trailer -- hope? Or maybe it's a bird, or a plane?

"Justice League" is scheduled for a November release. See all our Comic-Con coverage here.

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