After months of waiting, the ultimate Arrowverse crossover is just one day away. On tomorrow’s episode of Supergirl, Barry (Grant Gustin) and Cisco (Carlos Valdes) will head over to Kara’s (Melissa Benoist) Earth to recruit her for their fight against the Dominators. Before we witness the long-awaited reunion of the Girl of Steel and the Scarlet Speedster, though, take a look at the extended trailer for the event released yesterday by The CW.

In this new video, we see Barry and Oliver (Stephen Amell) hanging out at a bar, HR (Tom Cavanagh) and Felicity (Emily Bett Rickards) fanboying/girling over Supergirl, Sara (Caity Lotz) fighting Deathstroke, a new trick arrow, and so much more. “Set your phasers to stun” indeed.

Finally, an interview with Benoist was released today where she talks about being in a room full of superheroes and flying in front of her new castmates. (Loving the girl power at 0:50, by the way!)

With less than twenty-four hours to go until the crossover kicks off in National City, it’s anyone’s guess as to what will be released before then. However, like always, we’ll be sure to keep you updated on all things ‘Invasion!’, so stay tuned. ‘Medusa’ airs tomorrow at 8/7c on The CW.