The CW has released the first look at the epic four-night DC superhero crossover.

Kicking off on Monday, Nov. 28, the event will find the stars of Supergirl, The Flash, Arrow and Legends of Tomorrow teaming up to fight the Dominators, an alien race with the power of mind-control.

In the first trailer of the crossover, Barry Allen (Grant Gustin) introduces Kara (Melissa Benoist) to his other superhero friends, Oliver Queen (Stephen Amell), Sara Lance (Caity Lotz), Ray Palmer (Brandon Routh) and so on and so on.

As Felicity Smoak (Emily Bett Rickards) exclaims in the video, this definitely looks like the "Best. Team-up. Ever!" Although this rah-rah team unity might not last too long if the Dominators decide to turn their mind-control powers against the super-squad. (Not that we'd mind watching some badass superhero-on-superhero battles too much.)

The DC crossover event begins at the end of Supergirl on Monday, Nov. 28 and will continue throughout the week on The Flash, Arrow and Legends of Tomorrow. Are you excited?