Arrow-Flash-Supergirl-Legends of Tomorrow Crossover Villain Revealed

Still, the inclusion of Supergirl and the Dominators in the crossover largely depends on how The CW’s DC Comics series adapt the Invasion! storyline.

However, Berlanti later revealed the main storyline of the crossover would start on The Flash, and continue to Arrow and Legends of Tomorrow while still including Supergirl.

However, little was known about what fans could expect from the crossover event, and what villain the superheroes would be tasked with fighting.