Supergirl returns from winter hiatus on January 23.

The episode is titled “Supergirl Lives.” Here is the synopsis from TV Guide: “The story of a missing woman named Izzy moves Kara to investigate, even though Snapper Carr has told her to leave the matter alone. When Kara and Mon-El check out the last place Izzy was seen, they end up thrust through a portal to another planet, where the downtrodden are sold as slaves as part of a trafficking ring run by Roulette. Meanwhile, Alex blames herself—and her new relationship with Maggie—for her sister’s disappearance.”

Don’t miss Supergirl “Supergirl Lives” Monday, January 23 at 8/7c on The CW.

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