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S01E18: Worlds FinestKara gains a new ally when the lightning-fast superhero The Flash suddenly appears from an alternate universe and helps Kara battle Siobhan, aka Silver Banshee, and Livewire in exchange for her help in finding a way to return him home.
Genres:
Air Date:
Mar 28, 2016
Runtime:
43 minutes
Production:
Casts:
Melissa Benoist, Chyler Leigh, David Harewood, Katie McGrath, Jesse Rath, Nicole Maines, Azie Tesfai, Julie Gonzalo, Staz Nair, Peta Sergeant
