Supergirl is Trapped in the Phantom Zone in New Promo

In this promo for next week's Supergirl, Kara is trapped in the Phantom Zone, a creepy netherworld full of nightmares, visions, and monsters, but her friends are just as  determined as she is to secure her freedom.

Supergirl airs Tuesdays at 9:00 PM ET on CW.

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Andy Hunsaker has a head full of sitcom gags and nerd-genre lore, and can be followed @AndyHunsaker if you're into that sort of thing.