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Watch First Full Trailer for The Flash/Supergirl Crossover Episode

The Flash and Supergirl

Supergirl and The Flash are set to take down two very bad villains on March 28th, but not without having some fun.

Watch the newly released trailer for “Worlds Finest” — the highly anticipated Supergirl/Flash crossover event.

Melissa Benoist (Kara Danvers/Supergirl) said, “It is the most joyous occasion to have these two superheroes together in the same place, at the same time, working together. They are both so happy with their powers and what they get to do and how they get to help people, that it’s kind of infectious and exciting and upbeat and happy.”

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, on SUPERGIRL, Monday, March 28th on CBS. Grant Gustin crosses over as The Flash.