By Chancellor Agard
November 15, 2016 at 12:00 PM EST
Diyah Pera; Katie Yu; Bettina Strauss; The CW

The Invasion has begun!

The latest promo for The CW’s epic four-way superhero crossover offers our first look at The Dominators, the alien race invading Earth to squash the growing metahuman population — and they look appropriately menacing and creepy. “These things are like World War Z zombies,” says Barry Allen (Grant Gustin) in the short clip.

The trailer also features a brief glimpse of Deathstroke, who returns for Arrow‘s 100th episode, which will air during the crossover event. Other familiar faces returning for the landmark hour include Susanna Thompson, John Barrowman, and Neal McDonough.

Watch the entire promo below.

The four-night crossover kicks off Nov. 28 with Supergirl at 8 p.m. ET on the CW. Pick up this week’s issue of Entertainment Weekly to get more info on the event.