Supergirl | CBS | Melissa Benoist from Whiplash and Glee to play the title character.

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2/13/17 episode

Supergirl
"LUTHORS"
Monday, February 13th at 8pm ET/7pm CT on The CW

LENA IS ARRESTED – After Metallo (guest star Frederick Schmidt) breaks out of prison and frees Lillian Luthor (guest star Brenda Strong), the police blame Lena (guest star Katie McGrath) for his escape and arrest her. Despite overwhelming evidence, Kara (Melissa Benoist) refuses to believe her friend is guilty and fights to clear Lena's name. Flashbacks reveal how Lena came to be a Luthor. Meanwhile, Alex (Chyler Leigh) introduces Maggie (Floriana Lima) to the gang. Tawnia McKiernan directed the episode written by Robert Rovner and Cindy Lichtman. (#212).

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2/20/17 belated Valentine's Day episode

Supergirl
"MR. & MRS. MXYZPTLK"
Monday, February 20th at 8pm ET/7pm CT on The CW

DC COMICS' MR. MXYZPTLK HITS NATIONAL CITY – When Mr. Mxyzptlk (guest star Peter Gadiot), a magical imp, shows up on Earth and declares his love for Kara (Melissa Benoist), she tries to let him down easy, thinking him harmless. However, he decides it's a challenge and starts to wreak havoc on National City. Mon-El (Chris Wood) has seen beings like Mr. Mxyzptlk on Daxam and knows how dangerous they can be. He and Kara argue over how to get rid of Mr. Mxyzptlk, further straining their relationship. Meanwhile, Alex (Chyler Leigh) and Maggie (Floriana Lima) celebrate their first Valentine's Day together. Stefan Pleszczynski directed the episode written by Jessica Queller & Sterling Gates (#213).

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2/27/17 episode

Supergirl
"HOMECOMING"
Monday, February 27th at 8pm ET/7pm CT on The CW

DEAN CAIN RETURNS – When Jeremiah Danvers (guest star Dean Cain) is rescued from Cadmus, Alex (Chyler Leigh) and Kara (Melissa Benoist) are thrilled to have their father back. The Danvers arrange a family dinner to celebrate but things go awry when a suspicious Mon-El (Chris Wood) starts to question Jeremiah about his sudden return. Helen Slater guest-stars. Larry Teng directed the episode written by Caitlin Parrish & Derek Simon (#214).

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3/06/17 episode

Supergirl
"EXODUS"
Monday, March 6th at 8pm ET/7pm CT on The CW

SNAPPER CARR INTERVIEWS SUPERGIRL – As Alex (Chyler Leigh) searches for Jeremiah (guest star Dean Cain) and Kara (Melissa Benoist) investigates a series of alien kidnappings, the sisters realize they must break the rules to foil a new Cadmus plot. In an effort to get Snapper Carr (guest star Ian Gomez) to run a story that would help her stop Cadmus, Kara agrees to set up an interview between Snapper and Supergirl. Michael Allowitz directed the episode written by Paula Yoo & Eric Carrasco (#215).

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3/20/17 episode

Supergirl
"STAR-CROSSED"
Monday, March 20th at 8pm ET/7pm CT on The CW

TERI HATCHER (Desperate Housewives, Lois & Clark: The New Adventures of Superman) AND KEVIN SORBO (Hercules) GUEST STAR; DARREN CRISS (Glee) MAKES HIS DEBUT AS THE MUSIC MEISTER – A new villain (guest star Teri Hatcher) comes to National City, putting Supergirl (Melissa Benoist) on high alert. Meanwhile, Winn's (Jeremy Jordan) girlfriend, Lyra (guest star Tamzin Merchant), gets Winn in trouble with the law. Maggie (guest star Floriana Lima) attempts to help Winn but old loyalties get in the way. The Music Meister (guest star Darren Criss) attacks Supergirl. John Medlen directed the episode written by Katie Rose Rogers & Jess Kardos (#216).

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3/27/17 episode

Supergirl
"DISTANT SUN"
Monday, March 27th at 8pm ET/7pm CT on The CW

LYNDA CARTER RETURNS AS PRESIDENT MARSDIN; KEVIN SMITH DIRECTS – A large bounty is put out on Supergirl (Melissa Benoist) and aliens from far and near attack National City intent on taking out the Woman of Steel. Alex (Chyler Leigh) and Maggie (Floriana Lima) run into Maggie's ex-girlfriend, Emily (guest star Hayley Sales), who is in town for a week. Hank (David Harewood) gets an interesting order from President Marsdin (guest star Lynda Carter). Kevin Smith directed the episode written by Gabriel Llanas & Anna Musky-Goldwyn (#217).

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4/24/17 episode

Supergirl
"ACE REPORTER"
Monday, April 24th at 8pm ET/7pm CT on The CW

"iZOMBIE'S" RAHUL KOHLI GUEST STARS – Lena's (guest star Katie McGarth) ex-boyfriend, Jack Spheer (guest star Rahul Kohli), comes to National City to unveil his big breakthrough in nano-technology, which has the potential to eradicate all diseases. Lena asks Kara to attend Jack's conference with her for support. When Kara sees Snapper (guest star Ian Gomez) in attendance she's inspired to tap back into her reporter skills and questions Jack on his discovery, which ultimately leads to a bigger investigation that puts everyone in danger. Armen V. Kevorkian directed the episode written by Paula Yoo & Caitlin Parrish (#218).

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5/01/17 episode

Supergirl
"ALEX"
Monday, May 1st at 8pm ET/7pm CT on The CW

ALEX IS KIDNAPPED – Alex (Chyler Leigh) is kidnapped and the kidnapper threatens to kill her unless Supergirl (Melissa Benoist) releases a notorious criminal from prison. Supergirl and Maggie (Floriana Lima) have always had different approaches to apprehending criminals but this time they must work together to save Alex. Meanwhile, Rhea (guest star Teri Hatcher) has an interesting proposal for Lena (Katie McGrath). Rob Greenlea directed the episode written by Eric Carrasco & Greg Baldwin (#219).

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5/08/17 episode

Supergirl
"CITY OF LOST CHILDREN"
Monday, May 8th at 8pm ET/7pm CT on The CW

"THIS IS US" LONNIE CHAVIS GUEST STARS – When an alien attacks National City, Supergirl (Melissa Benoist) and the DEO learn the alien is a Phorian, an otherwise peaceful race with telekinetic powers. Guardian (Mehcad Brooks) gets a lead on the Phorian's address but instead of finding the culprit, he finds a very scared boy named Marcus (guest star Lonnie Chavis). Marcus will only trust James so it is up to Guardian to stop the attacks on the city. Rhea's (guest star Teri Hatcher) plan escalates. Ben Bray directed the episode with story by Robert Rovner and teleplay by Gabriel Llanas & Anna Musky-Goldwyn (#220).

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5/15/17 episode

Supergirl
"RESIST"
Monday, May 15th at 8pm ET/7pm CT on The CW

CAT GRANT RETURNS – Supergirl (Melissa Benoist) grapples with whether or not to obey the President's (guest star Lynda Carter) orders regarding Rhea's (guest star Teri Hatcher) latest actions. Meanwhile, Cat Grant (guest star Calista Flockhart) returns to National City. Millicent Shelton directed the episode written by Jessica Queller & Derek Simon (#221).

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5/22/17 Season 2 Finale episode

Supergirl
"NEVERTHELESS, SHE PERSISTED"
Monday, May 22nd at 8pm ET/7pm CT on The CW

SUPERGIRL FIGHTS FOR HER CITY; SUPERMAN RETURNS – Supergirl (Melissa Benoist) challenges Rhea (guest star Teri Hatcher) to battle to save National City. Meanwhile, Superman (guest star Tyler Hoechlin) returns and Cat Grant (guest star Calista Flockhart) offers Supergirl some sage advice. Glen Winter directed the episode with story by Andrew Kreisberg & Jessica Queller and teleplay by Robert Rovner & Caitlin Parrish (#222).

FYI: The CW has renewed Supergirl for Season 3.

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10/09/17 Season 3 Premiere episode

Spoiler

Supergirl
"GIRL OF STEEL"
Monday, October 9th at 8pm ET/7pm CT on The CW

DREAM A LITTLE DREAM OF YOU — Kara (Melissa Benoist) deals with the loss of Mon-El (Chris Wood) by focusing all her energy on being Supergirl and the mysterious new threat against National City. Alex (Chyler Leigh) confesses a secret to Maggie (guest star Floriana Lima) about their impending nuptials. A citizen of National City has a mysterious connection to Kara, and Lena (Katie McGrath) makes a bold move. Jesse Warn directed the episode with story by Andrew Kreisberg and teleplay by Robert Rovner and Caitlin Parrish (#301).

 

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10/16/17 episode

Supergirl
"TRIGGERS"
Monday, October 16th at 8pm ET/7pm CT on The CW

YAEL GROBGLAS (Jane the Virgin) GUEST STARS — Psi (guest star Yael Grobglas), a thief with psychic powers, attacks National City. Able to immobilize people by tapping into their worst fears, Psi proves a formidable opponent for Supergirl. Meanwhile, James (Mehcad Brooks) and Lena (Katie McGrath) are at an impasse, and Samantha starts her new job at L-Corp. David McWhirter directed the episode written by Gabriel Llanas & Anna Musky-Goldwyn (#302).

 

 

10/23/17 episode

Supergirl
"FAR FROM THE TREE"
Monday, October 23rd at 8pm ET/7pm CT on The CW

CARLOS BERNARD (24) GUEST STARS; HELEN SLATER RETURNS — Eliza (guest star Helen Slater) throws Alex (Chyler Leigh) and Maggie (guest star Floriana Lima) a wedding shower, which causes Maggie to reach out to her estranged father (guest star Carlos Bernard). Supergirl (Melissa Benoist) joins J'onn (David Harewood) on a personal mission. Dermott Downs directed the episode written by Jessica Queller & Derek Simon (#303).

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10/30/17 episode

Supergirl
"THE FAITHFUL"
Monday, October 30th at 8pm ET/7pm CT on The CW

CHAD LOWE GUEST STARS — Kara (Melissa Benoist) investigates a secretive new group whose leader, Thomas Coville (guest star Chad Lowe), has a mysterious connection to Supergirl. Meanwhile, Samantha (Odette Annable) feels like she's letting Ruby (guest star Emma Tremblay) down, and J'onn (David Harewood) confesses an old secret. Jesse Warn directed the episode written by Paula Yoo & Katie Rose Rogers (#304).

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11/06/17 episode

Supergirl
"DAMAGE"
Monday, November 6th at 8pm ET/7pm CT on The CW

MORGAN EDGE SETS HIS SIGHTS ON LENA — When multiple children get sick from lead poisoning, Morgan Edge (guest star Adrian Pasdar) points the finger at Lena (Katie McGrath) and blames her creation of the lead bomb she made to save National City from the Daxamites. While Lena knows she never intended any harm, she fears there may have been a flaw in her design, leaving her responsible. Kara (Melissa Benoist) teams up with Samantha (Odette Annable) to clear Lena's name, but it turns out to be harder than they thought. Meanwhile, Alex (Chyler Leigh) and Maggie (guest star Floriana Lima) make a crucial decision about the future of their relationship. Kevin Smith directed the episode written by Eric Carrasco & Cindy Lichtman (#305).

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11/13/17 episode
Supergirl
"MIDVALE"
Monday, November 13th at 8pm ET/7pm CT on The CW

ESCAPE DOWN MEMORY LANE — Kara (Melissa Benoist) and Alex (Chyler Leigh) head home to Midvale for a little R&R. While there, Kara recalls a painful memory of a childhood friend's death and how that traumatic experience brought the Danver sisters closer together. Izabela Vidovic plays Young Kara and Olivia Nikkanen plays Young Alex in flashbacks. Rob Greenlea directed the episode written by Caitlin Parrish and Jess Kardos (#306).

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11/20/17 episode

Spoiler

Supergirl
"WAKE UP"
Monday, November 20th at 8pm ET/7pm CT on The CW

CHAD LOWE RETURNS TO DIRECT; BETTY BUCKLEY GUEST STARS — When Winn (Jeremy Jordan) and the team discover an alien ship has crash landed deep underwater beneath National City, Kara/Supergirl (Melissa Benoist) is called in to investigate. Meanwhile, Hank (David Harewood) attempts to bond with his father, Myr'nn (guest star Carl Lumbly). Samantha (Odette Annable), eager for some understanding of the changes she has been experiencing, looks to her estranged mother, Patricia Arias (guest star Betty Buckley), for answers. Chad Lowe directed the episode written by Gabriel Llanas and Anna Musky-Goldwyn. (#307).

 

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11/27/17 Part 1 of 4/Quadruple Crossover episode

Supergirl
"CRISIS ON EARTH-X, PART 1"
Monday, November 27th at 8pm ET/7pm CT on The CW

THE EPIC FOUR-WAY CROSSOVER WITH "ARROW," "SUPERGIRL," "THE FLASH" AND "DC'S LEGENDS OF TOMORROW" BEGINS — Barry (guest star Grant Gustin) and Iris's (guest star Candice Patton) wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold (guest star Wentworth Miller), The Ray (guest star Russell Tovey), Felicity Smoak (guest star Emily Bett Rickards), Iris West and Alex Danvers (Chyler Leigh) to take on their most formidable villains yet. Earth's mightiest heroes – Green Arrow (guest star Stephen Amell), Supergirl (Melissa Benoist), The Flash (guest star Grant Gustin) and White Canary (guest star Caity Lotz) – lead their teams into battle to save the world. Larry Teng directed the episode with story by Andrew Kreisberg & Marc Guggenheim and teleplay by Robert Rovner & Jessica Queller (#308).

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12/04/17 episode

Spoiler

Supergirl
"REIGN"
Monday, December 4th at 8pm ET/7pm CT on The CW

REIGN CHALLENGES SUPERGIRL – Supergirl (Melissa Benoist) investigates a mysterious symbol popping up all over National City, tracing its origins back to an ancient prophecy and the mark of the World Killer, Reign (Odetee Annable). Meanwhile, the tension between Lena (Katie McGrath) and Morgan Edge (guest star Adrian Pasdar) continues to build, causing James to step in and offer up some protection, and possibly igniting a spark in the process. Glen Winter directed the episode written by Paula Yoo & Caitlin Parrish (#309).

 

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1/15/18 episode

Supergirl
"LEGION OF SUPERHEROES"
Monday, January 15th at 8pm ET/7pm CT on The CW

MEET THE LEGION – Struggling to heal from her injuries inflicted by Reign (Odette Annable), Supergirl (Melissa Benoist) remains in a dreamlike state, unable to be reached. Mon-El (Chris Wood) recruits one of the Legion members, Brainiac-5 (guest star Jesse Rath), to try to bring her back. Meanwhile, Reign continues her rampage on the city so the DEO teams up with the Legion of Superheroes to try to stop her. Jesse Warn directed the episode written by Derek Simon & Eric Carrasco (#310).

 

 

1/22/18 episode

Supergirl
"FORT ROZZ"
Monday, January 22nd at 8pm ET/7pm CT on The CW

SUPERGIRL TEAMS UP WITH SATURN GIRL, LIVEWIRE AND PSI – As Reign (Odette Annable) continues to terrorize the city, Supergirl (Melissa Benoist) teams up with Saturn Girl (guest star Amy Jackson), and the two recruit Supergirl's former enemies, Livewire (guest star Brit Morgan) and Psi (guest star Yael Grobglas), to form a team for a mission to Fort Rozz to recover a prisoner who has information on how to defeat Reign once and for all. Meanwhile, Alex (Chyler Leigh) babysits Ruby (guest star Emma Tremblay). Gregory Smith directed the episode written by Gabriel Llanas & Anna Musky-Goldwyn (#311).