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Grant Gustin Heads to Supergirl Set for Crossover Episode

Grant Gustin is on his way to the set of Supergirl to film the episode ‘Worlds Finest,’ which sees […]
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Grant Gustin is on his way to the set of Supergirl to film the episode “Worlds Finest,” which sees his character, Barry Allen/The Flash head to National City for a special crossover. The actor posted on instagram Tuesday night that he was heading to the other DC Comics show’s set.

The crossover was teased on this week’s episode of The Flash in a surprise cameo by Melissa Benoist, the star of Supergirl. When Barry Allen, Cisco, and Harrison Wells went through the portal to Earth-2, they first passed other alternate worlds. In those, they saw Benoist as Kara Zor-El flying along as one of the visions, seemingly confirming that the alternate reality conceit would be used to connect the shows.

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The Supergirl episode guest starring The Flash, “Worlds Finest” will air March 28, 2016 at 8pm on CBS.