CBS television has released their trailer for the upcoming Supergirl/Flash crossover.
Episode 18 of Supergirl titled “World’s Finest” and is officially described as follows:
“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.”
The Flash and Supergirl crossover is set to air Monday March 28 at 8 PM ET on CBS.
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