Livewire and Silver Banshee - Supergirl Season 1 Episode 18
The Flash sure did pick a great time to visit! He and Supergirl are going to have their hands full with these two. With Livewire returning and Siobhan becoming Silver Banshee, Kara is going to need all the help she can get!

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Robert Voets/Warner Bros. Entertainment Inc
Supergirl Season 1 Episode 18: "Worlds Finest "
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Supergirl Season 1 Episode 18 Quotes

I'm Barry Allen, fastest man alive. I also think that I'm on the wrong Earth. I'm gonna need your help.


Winn: I saw that winning the people back wasn't going so well.
Kara: I have tried everything I can think of. Last night, I helped a family assemble their IKEA table.