Supergirl Promo Shows Red Daughter in Action

Supergirl Season 4

A new Supergirl promo shows what's in store for Kara Danvers and her Russian doppelganger, known to fans as Red Daughter.

As the promo begins, Colonel Haley asks Brainiac-5 about Supergirl. Afterwards, Alex tells her sister that Haley is on a mission to "find out who Supergirl is," with a scene of Supergirl getting back up after a fight. Following that, Red Daughter makes a brief appearance, punching what appears to be a drone, causing it to explode.

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Before the promo ends, fans are treated to scenes of Supergirl in action, while Haley leads a handful of DEO operatives as they prepare to open fire. In a voice-over, Haley continues to press on about Supergirl's secret identity, promising to unravel the mystery.

While Supergirl may have defeated Agent Liberty and helped the Flash and Green Arrow put an end to the reality warping shenanigans of John Deegan, this promo indicates that Kara's problems may only worsen as the season progresses. Even as she deals with Haley's attempts to learn her true identity, a showdown with Red Daughter seems to be inevitable.

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The episode, titled "Suspicious Minds," was written by Maria Maggenti and Gabriel Llanas, with Rachel Talalay directing. Airing January 20, the episode will serve as the mid-season premiere.

Airing Sundays at 8 p.m. ET/PT on The CW, Supergirl stars Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen and Chyler Leigh as Alex Danvers.

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