Season 3

s03e01 / Girl of Steel

10th Oct '17 - 12:00am
Girl of Steel

Kara deals with the loss of Mon-El by focusing all her energy on being Supergirl and the mysterious new threat against National City. Alex confesses a secret to Maggie about their impending nuptials. A citizen of National City has a mysterious connection to Kara, and Lena makes a bold move.

10295 have watched this episode

s03e02 / Triggers

17th Oct '17 - 12:00am

Psi, 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 and Lena are at an impasse, and Samantha starts her new job at L-Corp.

10094 have watched this episode

s03e03 / Far from the Tree

24th Oct '17 - 12:00am
Far from the Tree

Eliza throws Alex and Maggie a wedding shower, which causes Maggie to reach out to her estranged father. Supergirl joins J'onn on a personal mission.

9917 have watched this episode

s03e04 / The Faithful

31st Oct '17 - 12:00am
The Faithful

Kara investigates a secretive new group whose leader, Thomas Coville, has a mysterious connection to Supergirl. Meanwhile, Samantha feels like she's letting Ruby down, and J'onn confesses an old secret.

9638 have watched this episode

s03e05 / Damage

7th Nov '17 - 1:00am

When multiple children get sick from lead poisoning, Morgan Edge points the finger at Lena 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 teams up with Samantha to clear Lena's name, but it turns out to be harder than they thought. Meanwhile, Alex and Maggie make a crucial decision about the future of their relationship.

9842 have watched this episode

s03e06 / Midvale

14th Nov '17 - 1:00am

Kara and Alex 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.

9761 have watched this episode

s03e07 / Wake Up

21st Nov '17 - 1:00am
Wake Up

When Winn and the team discover an alien ship has crash landed deep underwater beneath National City, Kara/Supergirl is called in to investigate. Meanwhile, Hank attempts to bond with his father, Myr'nn. Samantha, eager for some understanding of the changes she has been experiencing, looks to her estranged mother, Patricia Arias, for answers.

9681 have watched this episode

s03e08 / Crisis on Earth-X (1)

28th Nov '17 - 1:00am
Crisis on Earth-X (1)

Barry and Iris's 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, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow, Supergirl, The Flash and White Canary - lead their teams into battle to save the world.

10346 have watched this episode

s03e09 / Reign

5th Dec '17 - 1:00am

Supergirl 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. Meanwhile, the tension between Lena and Morgan Edge continues to build, causing James to step in and offer up some protection, and possibly igniting a spark in the process.

9479 have watched this episode

s03e10 / Legion of Super-Heroes

16th Jan '18 - 1:00am
Legion of Super-Heroes

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 Super-Heroes to try to stop her.

9241 have watched this episode

s03e11 / Fort Rozz

23rd Jan '18 - 1:00am
Fort Rozz

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.

9100 have watched this episode

s03e12 / For Good

30th Jan '18 - 1:00am
For Good

Someone tries to hug Morgan Edge and he barely survives. He accuses Lena of being behind the attempt and vows to destroy her. When Lena fears her hatred for Morgan will take her to the Luthor dark side, Kara steps in to help her friend. Meanwhile, after Sam realizes she's losing time, she confides in Alex who decides to run some medical tests to see if she can find out what's going on with her new friend.

8877 have watched this episode

s03e13 / Both Sides Now

6th Feb '18 - 1:00am
Both Sides Now

The DEO captures a second Worldhugger, 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.

8986 have watched this episode

s03e14 / Schott Through the Heart

17th Apr '18 - 12:00am
Schott Through the Heart

When Winn's father dies, his estranged mother, Mary, 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 Worldhuggers, and Alex becomes suspicious of Myr'nn's recent behavior.

8613 have watched this episode

s03e15 / In Search of Lost Time

24th Apr '18 - 12:00am
In Search of Lost Time

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

8520 have watched this episode

s03e16 / Of Two Minds

1st May '18 - 12:00am
Of Two Minds

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

8469 have watched this episode

s03e17 / Trinity

8th May '18 - 12:00am

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 Worldhuggers united, Supergirl and the team brace for an epic battle.

8449 have watched this episode

s03e18 / Shelter from the Storm

15th May '18 - 12:00am
Shelter from the Storm

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

8381 have watched this episode

s03e19 / The Fanatical

22nd May '18 - 12:00am
The Fanatical

When Tanya, a disciple of Coville's, escapes from what's left of his cult, she 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.

8292 have watched this episode

s03e20 / Dark Side of the Moon

29th May '18 - 12:00am
Dark Side of the Moon

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

8106 have watched this episode

s03e21 / Not Kansas

5th Jun '18 - 12:00am
Not Kansas

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

8161 have watched this episode

s03e22 / Make It Reign

12th Jun '18 - 12:00am
Make It Reign

Supergirl learns the true depth of Serena's nefarious plans for Earth. Supergirl, Mon-El and Alura must devise a plan to stop her before Serena gets to Earth. J'onn prepares to say goodbye to his father.

8049 have watched this episode

s03e23 / Battles Lost and Won

19th Jun '18 - 12:00am
Battles Lost and Won

Supergirl and team take on Serena in an epic battle for Earth.

7973 have watched this episode
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