This limited, 7-Part special event has the Scarlett Speedster himself, Barry Allen, come to Supergirl's world for the first three parts! And then, it has the Girl of Steel, Kara Danvers, go to the Flash's world for the last three! "World's Finest" was epic, so I wanted to make more. Part 1 will be released April 9th! And part 7 will be released June 3rd!