Supergirl 4x9
Elseworlds (III)
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).
Supergirl season 4
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4x1American Alien Oct 14, 2018 -
4x2Fallout Oct 21, 2018 -
4x3Man of Steel Oct 28, 2018 -
4x4Ahimsa Nov 04, 2018 -
4x5Parasite Lost Nov 11, 2018 -
4x6Call to Action Nov 18, 2018 -
4x7Rather the Fallen Angel Nov 25, 2018 -
4x8Bunker Hill Dec 02, 2018 -
4x9Elseworlds (III) Dec 11, 2018 -
4x10Suspicious Minds Jan 20, 2019 -
4x11Blood Memory Jan 27, 2019 -
4x12Menagerie Feb 17, 2019 -
4x13