The Flash and Supergirl Crossover Episode is Titled “Worlds Finest”


Grant Gustin who plays The Flash has confirmed the title for The Flash and Supergirl crossover episode on CBS, through his official Instagram, by sharing a photo of the script cover for the episode, confirming that the episode is “Worlds Finest” and that it’ll be episode 18 of season 1 of Supergirl

The Flash and Supergirl Crossover Poster
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