Aliens and Deathstroke(?!) in new Arrow, Supergirl, Legends, Flash crossover trailer

The CW is gearing up for its most ambitious crossover event yet, and now we have our first look at the alien Dominators set to terrorize the planet.

The event, simply titled “Heroes vs. Aliens” (to the point, right?), features heroes from Flash, Arrow, Supergirl and Legends of Tomorrow facing off with mind-controlling aliens called the Dominators. The event is a loose adaptation of the DC Comics’ storyline “Invasion!” and brings all of the non-Justice League together to face the threat. They even pull Supergirl over from her alternate universe to lend a hand.

The footage gives us our first look at the Dominators in action, and it’s hard to argue with Barry’s description of these freaky alien creatures. We even get a peek at (what appears to be) their spaceship. Along with some geek-tastic team-up shots, there’s also the big reveal that Deathstroke will (apparently) be back to wreak havoc on Team Flash/Arrow/Legends/Supergirl. Here’s hoping it’s a better story than the last Slade Wilson tale, which was not all that impressive. 

The CW’s four-show crossover begins Monday, Nov. 28, on Supergirl and runs through the rest of the week.

Check out the trailer below and let us know what you think:

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