Episode 4.08 of The Flash, which is part of the annual DC/CW 4-way crossover is titled "Crisis on Earth X", SpoilerTV has learned.
The Flash - Episode 4.08 (4-Way Crossover) - Title Revealed
28 Sept 2017
Arrow Legends of Tomorrow Supergirl The FlashEpisode 4.08 of The Flash, which is part of the annual DC/CW 4-way crossover is titled "Crisis on Earth X", SpoilerTV has learned.
