S4·E9 Elseworlds (III)
Core
Aired December 11, 2018
Narrative Classification: Standard continuity chapter maintaining character development and season progression.
Synopsis
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).
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Frequently Asked Questions
When did Season 4 Episode 9 of Supergirl air?
Season 4, Episode 9 ('Elseworlds (III)') originally aired on December 11, 2018.
How long is Season 4 Episode 9 ('Elseworlds (III)')?
The episode follows the standard broadcast runtime for Supergirl.
What happens in Supergirl Season 4 Episode 9?
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)....