Watch THE FLASH and SUPERGIRL Crossover Trailer

The Flash and Supergirl crossover trailer brings two really fast superheroes together

WB and CBS have released The Flash and Supergirl crossover trailer and it’s about speed for the Supergirl episode, titled “World’s Finest.” 

“Kara gains a new ally when the lightning-fast superhero The Flash (Grant Gustin) suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee, and Livewire in exchange for her help in finding a way to return him home.”

Check out The Flash / Supergirl crossover trailerThe Flash and Supergirl episode “World’s Finest” will air on Monday, March 28th at 8pm ET on CBS.


By Molly

Molly is a proud Canadian who is currently attending university in Scotland. She loves to read, write, watch films, and talk about Sarah J. Maas books. If not snuggled up with a book, Molly can usually be found tapping at the dance studio, or writing yet another essay.