It’s not just the Dominators we get a good look at, though. The trailer also offers another look at Legends of Tomorrow’s Nate Heywood in his full Citizen Steel costume, complete with helmet. And yes, it is still amazingly goofy, and yet it kind of works?

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The trailer also seemingly gives us a hint that the Dominators will be using some of their comic book mastery of genetics to build copies of people in the crossover, too. Not only do we see Flash and Supergirl tag-teaming on someone who looks human rather than alien, we get a glimpse of a villain who by all means probably shouldn’t be running around in this crossover:

Uh-oh. The “Heroes vs. Aliens” event kicks off with Supergirl on November 28.