CW superhero crossover promo: Supergirl, Arrow, Flash unite

Superheroes unite!

In the first promo from the CW’s four-way superhero crossover, Supergirl meets the heroes from Arrow, Legends of Tomorrow and The Flash — and Felicity Smoak is more than a little excited about the team-up.

They’ll join forces to face off against the Dominators, a technologically advanced alien race hellbent on quashing the threat that Earth’s metahumans pose.

Can the heroes save the world from Invasion? Find out Nov. 28 when the four-night crossover event kicks off with Supergirl at 8 p.m. ET on the CW. And pick up this week’s issue of Entertainment Weekly to get more info on the crossover.