Supergirl returned for Season 4 on October 14.
The three part crossover event concludes with Part 3 on Supergirl.
Season 4 Episode 9 is titled “Elseworlds, Part 3” Here is the synopsis from TV Guide: “Supergirl, the Flash, Green Arrow and Superman engage in the battle of their lives.”
Don’t miss Supergirl “Elseworld, Part 3 airing Tuesday, December 11, 2018 at 8/7c on The CW.
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