Supergirl returns for its fifth season of The CW in less than a month and the network has released the official synopsis for the upcoming premiere episode.

Titled "Event Horizon," the plot description reveals that CatCo, the media conglomerate employing Kara Danvers and James Olsen, has gained new ownership. As the characters navigate new interpersonal relationships, the Martian Manhunter is slated to receive a surprise guest.

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SEASON PREMIERE – Kara (Melissa Benoist) is surprised to find that CatCo has a new owner who has brought in a star reporter. New couples emerge and explore their budding relationships while J’onn J’onzz (David Harewood) receives an unexpected visitor.

Jesse Warn directed the episode written by Derek Simon & Nicki Holcomb. Original airdate 10/6/2019.

The fifth season will see the arrival of new villains to National City while Lena Luthor's friendship with Kara has become strained after learning her secret identity as the Girl of Steel from her deceased brother Lex in the Season 4 finale.

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Returning Sunday, Oct. 6 at 9 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.