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Supergirl, The Flash, Green Arrow and Superman engage in the battle of their lives.
The crossover starts on The Flash S05E09 Elseworlds (I) and Arrow S07E09 Elseworlds (II).
First Air Date : Oct 26, 2015
Last Air date : Nov 09, 2021
Episode : 126 Episode
Season : 6 Season
Runtime: 42:14 minutes
Country: United States of America