Check out the official preview for Supergirl and The Flash crossover TV event, right now on Fan Reviews! <br /> <br />The Supergirl episode "Worlds Finest" airs Monday, March 28 at 8 p.m. ET/PT on CBS. <br /> <br />Supergirl is an American superhero fiction action-adventure drama television series developed by Ali Adler, Greg Berlanti and Andrew Kreisberg, that airs on CBS. It is based on the DC Comics character Supergirl (Kara Zor-El), created by Otto Binder and Al Plastino, and stars Melissa Benoist in the title role. Supergirl is a costumed superheroine who is the biological cousin to Superman and one of the last surviving Kryptonians. The series was officially picked up on May 6, 2015 after receiving a series commitment in September 2014, and premiered on October 26, 2015. Supergirl received a full season order of 20 episodes on November 30, 2015. <br /> <br />he Flash is an American television series developed by Greg Berlanti, Andrew Kreisberg and Geoff Johns, airing on The CW. It is based on the DC Comics character Barry Allen / Flash, a costumed superhero crime-fighter with the power to move at superhuman speeds. It is a spin-off from Arrow. The series follows Allen, portrayed by Grant Gustin, a crime scene investigator who gains super-human speed, which he uses to fight criminals, including others who have also gained superhuman abilities.
