There is going to be huge crossover this fall in the DC T.V universe. The news of Supergirl moving to CW to join in the Berlanti Universe as it is nicknamed (because of the producer Greg Berlanti.) We are going to have a huge crossover this fall with the shows, Supergirl, Flash, Arrow and Legends of Tomorrow. By that point it will be Supergirl Season 2, Flash Season 3, Arrow Season 5 and Legends of Tomorrow Season 2. Link to the trailer at the bottom of the post.
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