Worlds Collide in First SUPERGIRL/FLASH Crossover Photos

Still from "Supergirl" episode "Worlds Finest"
Preview

CW's Flash is crossing over into the world of CBS's Supergirl. The heroes will team up against Livewire and Silver Banshee, as seen in these new photos from the episode.

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

The episode, entitled "Worlds Finest" is scheduled to air Monday, March 28 on CBS.

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