Katie McGrath

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  • Battles Lost and Won

    Full Episode

    S 3 : Ep 23 - 6/18/18

    In the season three finale, Kara and all of her colleagues and fellow superheroes join forces to stop the Worldkillers from devastating Earth and reforming it into a new Krypton. However the efforts to do so come at a tremendous cost for some and make others to make life changing decisions.

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  • Make It Reign

    Full Episode

    S 3 : Ep 22 - 6/11/18

    Sam grows weaker, while Selena and her fellow witches reach Earth and prepare to transform it into a New Krypton... wiping out the human population in the process.

  • Not Kansas

    Full Episode

    S 3 : Ep 21 - 6/4/18

    Kara makes a major life decision. Meanwhile, J'onn finds out that special DEO-caliber guns have hit the streets of National City.

  • Dark Side of the Moon

    Full Episode

    S 3 : Ep 20 - 5/28/18

    Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far she will go to keep Reign contained.

  • The Fanatical

    Full Episode

    S 3 : Ep 19 - 5/21/18

    Tanya, a disciple of Coville's, escapes from what's left of his cult, and gives Kara and James a journal that could hold the key to saving Sam. Someone learns Guardian's identity and threatens to expose James if he doesn't do what they ask. James contemplates what it means to be a black vigilante without a mask in America.

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  • Shelter From the Storm

    Full Episode

    S 3 : Ep 18 - 5/14/18

    When Reign starts hunting Ruby, Supergirl and Alex work together to keep her safe. Supergirl and J'onn look to Sam's mother for advice on how to stop Reign and come away with some shocking news.

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  • Trinity

    Full Episode

    S 3 : Ep 17 - 5/7/18

    Still reeling after learning about Lena's secret, Supergirl asks Guardian for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.

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  • Of Two Minds

    Full Episode

    S 3 : Ep 16 - 4/30/18

    Supergirl and Imra have different ideas on how to stop the third Worldkiller, Pestilence. However, when both Alex and Winn are seriously injured by Pestilence, Supergirl and Imra team up to stop the destruction.

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  • In Search of Lost Time

    Full Episode

    S 3 : Ep 15 - 4/23/18

    When Myr'nn inadvertently causes psychic disturbances at the DEO, Supergirl must work with J'onn to contain the resulting chaos. Meanwhile, Mon-El begins training Kara in fighting techniques he's learned in the future for battling Worldkillers.

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  • Schott Through the Heart

    Full Episode

    S 3 : Ep 14 - 4/16/18

    When Winn's father dies, his estranged mother reappears, trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her, but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of Myr'nn's recent behavior.

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  • Both Sides Now

    Full Episode

    S 3 : Ep 13 - 2/5/18

    The DEO captures a second Worldkiller, Purity. Supergirl and Alex use very different methods of interrogation with Purity in the hopes of finding out how to defeat Reign. However, Purity escapes and attacks the city's subway tunnels. Meanwhile, J'onn, Winn and Mon-El band together to fix the Legion ship.

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  • Fort Rozz

    Full Episode

    S 3 : Ep 11 - 1/22/18

    As Reign continues to terrorize the city, Supergirl teams up with Saturn Girl, and the two recruit Supergirl's former enemies, Livewire and Psi, 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 babysits Ruby.

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  • Legion of Superheroes

    Full Episode

    S 3 : Ep 10 - 1/15/18

    Struggling to heal from her injuries inflicted by Reign, Supergirl remains in a dreamlike state, unable to be reached. Mon-El recruits one of the Legion members, Brainiac-5, 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.

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  • Reign

    Full Episode

    S 3 : Ep 9 - 12/4/17

    When a mysterious symbol appears all over National City, Supergirl investigates and meets Reign. Meanwhile, James offers Lena protection from Morgan.

  • Damage

    Full Episode

    S 3 : Ep 5 - 11/6/17

    Multiple children get sick from lead poisoning and Morgan Edge blames Lena for creating the lead bomb she made to save National City from the Daxamites. Meanwhile, Alex and Maggie make a crucial decision about the future of their relationship.

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  • The Faithful

    Full Episode

    S 3 : Ep 4 - 10/30/17

    A new group in National City, led by Thomas Coville, is somehow connected to Supergirl and Kara determines to find out how. Meanwhile, Sam continues to have problems with Ruby.

  • Triggers

    Full Episode

    S 3 : Ep 2 - 10/16/17

    Psi, a thief with psychic powers, attacks National City and is able to immobilize people by tapping into their worst fears. Meanwhile, James and Lena are at an impasse; and Samantha starts her new job at L-Corp.

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  • Girl of Steel

    Full Episode

    S 3 : Ep 1 - 10/9/17

    Kara fights a new threat against National City while dealing with Mon-El's departure. Meanwhile, Lena puts a new plan in motion, and Alex and Maggie prepare for their wedding.

  • Nevertheless, She Persisted

    Full Episode

    S 2 : Ep 22 - 5/22/17

    While Superman returns to help fight the Daxamites, Supergirl goes one-on-one against Rhea for the fate of National City.

  • City of Lost Children

    Full Episode

    S 2 : Ep 20 - 5/8/17

    When an alien attacks National City, Supergirl and the DEO learn the alien is a Phorian, an otherwise peaceful race with telekinetic powers. Guardian gets a lead on the Phorian's address, but instead of finding the culprit, he finds a very scared boy named Marcus. Marcus will only trust James, so it is up to Guardian to stop the attacks on the city. Meanwhile, Rhea's plan escalates.

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  • Alex

    Full Episode

    S 2 : Ep 19 - 5/1/17

    Supergirl and Maggie work together to save a kidnapped Alex. Meanwhile, Rhea approaches Lena with an offer.

  • Ace Reporter

    Full Episode

    S 2 : Ep 18 - 4/24/17

    Kara interviews Lena's ex-boyfriend Jack Spheer during Jack's press conference, and uncovers an issue with his nano-technology development that leads to a potential threat.

  • Exodus

    Full Episode

    S 2 : Ep 15 - 3/6/17

    As Alex searches for Jeremiah and Kara 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 to run a story that would help her stop Cadmus, Kara agrees to set up an interview between Snapper and Supergirl.

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  • Luthors

    Full Episode

    S 2 : Ep 12 - 2/13/17

    Lena is arrested for helping break Metallo and Lillian Luthor out of prison. While the evidence seems stacked against her, Kara refuses to believe her friend is guilty and fights to clear Lena's name.

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  • Medusa

    Full Episode

    S 2 : Ep 8 - 11/28/16

    Eliza Danvers comes to National City for Thanksgiving, and Alex decides to come out to her mother. Meanwhile, Barry Allen and Cisco Ramon ask Supergirl to help them with the Dominator invasion on their earth, and Cadmus creates an alien-specific virus from the information at the Fortress to complete their master plan.

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  • Crossfire

    Full Episode

    S 2 : Ep 5 - 11/7/16

    Supergirl faces a new challenge from a ruthless gang who are armed and dangerous with cutting-edge alien technology; at the same time, Kara gets Mon-El an internship at CatCo; James comes to an important decision; and Lena puts Kara's name on the guest list for one of her fund-raisers.

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  • Survivors

    Full Episode

    S 2 : Ep 4 - 10/31/16

    Thrilled to have found another Martian, Hank is determined to get to know M'Gann better; Kara and Alex take notice of an alien fight club run by Roulette while investigating an unregistered alien's murder; and Supergirl starts training Mon-El, whom she has taken under her wing.

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  • Welcome to Earth

    Full Episode

    S 2 : Ep 3 - 10/24/16

    Kara fears the recently escaped Mon-El is behind an attack on the president, who Supergirl and the DEO have been assigned to protect; at the same time, the hot-button issue of aliens vs. human rights divides National City.

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  • The Adventures of Supergirl

    Full Episode

    S 2 : Ep 1 - 10/10/16

    Superman pays his cousin Supergirl a visit, and they team up to determine if Lex Luthor's sister Lena was behind a space shuttle crash. Meanwhile, the inhabitant of the landing pod is revealed.

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  • Part 2

    Full Episode

    S 1 : Ep 2 - 5/23/14

    While Alice tries to thwart Marie from obtaining the Grail in the present day... in the past, Alais escapes Carcassonne with the Book of Words but at a terrible cost.

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