Grant Gustin, Candice Patton, The Flash

The CW

It sounds like this year's big DC crossover is going to get a little extra super. 

Not only will the event—a three-night crossover between The Flash, Supergirl, and Arrow—feature all the regular superheroes we've come to know and love, but we'll also get to hang out with a few other super faces, new and old, thanks to the return of Superman and the introduction of Batwoman and Lois Lane. 

Last year's crossover started with the wedding of Barry Allen (Grant Gustin) and Iris West (Candice Patton) being interrupted by nazis from an alternate universe, so it's safe to say pretty much anything could go down when these three shows get together. 

Arrow, Emily Bett Rickards, gif

E!

One mystery we're still trying to solve is exactly what Emily Bett Rickards was trying to communicate when our Comic-Con game of Truth or Dare asked her to "mime a secret from this year's crossover." She simply did one jumping jack, then sat back down while her costars clapped and agreed that it was a good miming of a secret from the crossover. Makes no real sense to us, so we guess we'll just have to wait to find out exactly what (or who) that jumping jack was about. 

For everything we actually know so far about what we're going to see come December, scroll on down! 

Elseworlds, The Flash, Arrow

CW

Ruby Rose, Batwoman

Brad Triffitt/CW

Arrow, Bruce Wayne

The CW

CW Crossover 2018, The Flash, Arrow, Supergirl

The CW

Supergirl, Melissa Benoist

CW

Superman, Lois Lane, The CW

The CW

Elizabeth Tulloch, Arrowverse

Diana Ragland; DC Entertainment

CW Crossover Casting

Warner Bros

Jeremy Davies

Jeff Vespa/WireImage

Arrow Crossover

CW

LaMonica Garrett, Arrow

DC Entertainment

Arrowverse Crossover, The CW

Instagram

Arrowverse Crossover, The CW

Instagram

Arrowverse Crossover, CW

Instagram

Arrowverse Crossover, The CW

Instagram

Arrowverse Crossover, CW

Instagram

Arrowverse Crossover, CW

Instagram

Arrowverse Crossover, The CW

Instagram

Arrowverse Crossover, The CW

Instagram

Arrowverse Crossover, The CW

Instagram

Superman, Supergirl

CW

The CW's annual superhero crossover will begin Sunday, December 9 on the CW. 

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