Supergirl
Season 4 Episode 9: Elseworlds (III)
Air Date: 2018-12-11
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).
Air Date: 2018-12-11
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).
