Watch A New Promo For The Supergirl/The Flash Crossover “Worlds Finest”

A brand new promo for the upcoming crossover between The Flash and Supergirl has been released. This crossover event is titled “Worlds Finest” and it will air on CBS on March 28.

In the episode, “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”.

Source: CBS

Ughhhh I am so ready for this!