CBS have released a new still and the official synopsis for the fifth episode of ‘Supergirl,’ titled “Livewire.”

Official Synopsis:

“Livewire” – Kara’s Thanksgiving may be ruined when she suspects her foster mother, Dr. Danvers (Helen Slater), who is coming to town, disapproves of her new role as a superhero.  Also, when an accident transforms a volatile CatCo employee into the villainous Livewire, she targets Cat and Supergirl, on SUPERGIRL, Monday, Nov. 23(8:00-9:00 PM, ET/PT) on the CBS Television Network. Brit Morgan guest stars as Leslie Willis/Livewire and Helen Slater guest stars as Dr. Eliza Danvers, Kara’s foster mother.

Stars: Melissa Benoist as Kara Danvers/Supergirl, Calista Flockhart as Cat Grant, Chyler Leigh as Alex Danvers, Mehcad Brooks as James Olsen, David Harewood as Hank Henshaw and Jeremy Jordan as Winslow “Winn” Schott.

Recurring Cast: Jenna Dewan-Tatum as Lucy Lane, Malina Weissman as Young Kara, Helen Slater as Dr. Eliza Danvers, Dean Cain as Dr. Jeremiah Danvers, Jordan Mazarati as Young Alex and Jay Jackson as Male Newscaster.

Guest stars: Brit Morgan as Leslie Willis/Livewire, Michael Mealor as Fratty Dude, Kevin Covais as High School Kid, and Tom Waite as Pilot.

“Livewire” was written by Roberto Aguirre-Sacasa and Caitlin Parrish. Directed by Kevin Tancharoen.

‘Supergirl’ Season 1, Episode 5 “Livewire” airs Monday, November 23rd at 8:00-9:00 PM, ET/PT.