Last night, during the airing of “DC’s Legends of Tomorrow” The CW released the first promo for the much-anticipated crossover event which will unite the DC Comics superheroes from all four of their respective series: “Supergirl,” “The Flash,” “Legends of Tomorrow,” and “Arrow.”
The 4-Night Crossover Event titled “Heroes vs. Aliens” will begin on “Supergirl” on November 28 and will conclude on “DC’s Legends of Tomorrow” on December 1. The event will pit the heroes against a force of mind-controlling aliens called the Dominators. The Dominators made their first appearance in the comics back in October of 1967, in Adventure Comics #361.