Season 4

s04e01 / American Alien

15th Oct '18 - 12:00am
American Alien

Diving back into reporting, Kara welcomes a new cub reporter to CatCo. Meanwhile, James and Lena argue about James' impending indictment for acting as the vigilante Guardian, while Alex and Brainy struggle to get in sync at the DEO. Supergirl is called into action when remnants of the anti-alien terrorist organization Cadmus try to assassinate pro-alien leaders, but their endgame turns out to be much more sinister than she expected.

7808 have watched this episode

s04e02 / Fallout

22nd Oct '18 - 12:00am

A shocking revelation causes chaos in National City. Supergirl sets out to capture Mercy Graves, while Alex takes control at the DEO. Back at CatCo, Kara decides to write an investigative story on Mercy and asks Lena if she can interview her as Mercy has ties to the Luthors. Meanwhile, Brainy meets Nia and the two end up in a precarious situation.

7582 have watched this episode

s04e03 / Man of Steel

29th Oct '18 - 12:00am
Man of Steel

Ben Lockwood didn't always hate aliens. Through a series of incidents and input from his anti-alien father, Ben slowly transforms from a mild-mannered professor into the villainous Agent Liberty of today.

7407 have watched this episode

s04e04 / Ahimsa

5th Nov '18 - 1:00am

When Supergirl needs help, Alex asks Lena and Brainiac to team up. Meanwhile, J'onn questions his decision to quit the DEO. However, after running into Manchester Black, he realizes there are a lot of ways to help his fellow aliens during this tumultuous time.

7456 have watched this episode

s04e05 / Parasite Lost

12th Nov '18 - 1:00am
Parasite Lost

Colonel Haley makes a surprising decision regarding Supergirl. Kara writes a series of articles highlighting aliens in National City in the hopes that humans will stop being so fearful of them. Unfortunately, the article puts some of the aliens in harm's way.

7387 have watched this episode

s04e06 / Call to Action

19th Nov '18 - 1:00am
Call to Action

Everyone gathers for Thanksgiving but Kara is feeling down after her televised debate with Ben Lockwood about the anti-alien sentiment coursing through National City. Meanwhile, James and Lena argue about the best way to handle the Children of Liberty.

7318 have watched this episode

s04e07 / Rather the Fallen Angel

26th Nov '18 - 1:00am
Rather the Fallen Angel

James falls in deeper with the Children of Liberty in his efforts to meet Agent Liberty. Meanwhile, Supergirl and Manchester Black follow a lead on Agent Liberty's location, but things take a dark turn. Lena kicks off her first set of trials.

7202 have watched this episode

s04e08 / Bunker Hill

3rd Dec '18 - 1:00am
Bunker Hill

Nia has a powerful dream about Agent Liberty but refuses to look at it as a prophetic dream, Kara and Brainy try to persuade Nia to embrace her destiny, and Manchester Black pays Ben Lockwood a menacing visit.

7272 have watched this episode

s04e09 / Elseworlds (3)

12th Dec '18 - 1:00am
Elseworlds (3)

Supergirl, The Flash, Green Arrow and Superman engage in the battle of their lives.

8017 have watched this episode

s04e10 / Suspicious Minds

21st Jan '19 - 1:00am
Suspicious Minds

Colonel Haley is upset after Supergirl responds to a distress call from a Navy ship that turned out to be a deadly alien attack. Colonel Haley reclaims the site as DEO territory and demands that Supergirl step aside. After Supergirl refuses to be told what to do, Haley refocuses her energy on finding out Supergirl's true identity and begins to interrogate all DEO agents, including Alex.

6917 have watched this episode

s04e11 / Blood Memory

28th Jan '19 - 1:00am
Blood Memory

Kara joins Nia on a trip to Nia's hometown to visit her family during the town's annual Harvest Festival. While home, Nia's mother encourages her daughter to embrace her destiny. Meanwhile, Alex deals with a street drug that is turning people unhappy and giving them temporary superpowers.

6774 have watched this episode

s04e12 / Menagerie

18th Feb '19 - 1:00am

With his P.I. shingle newly hung outside his office, J'onn welcomes new clients. Trying to take her mind off what happened at the DEO, Kara decides to team up with J'onn on his latest assignment, which unfortunately ends up tying directly into Alex's current investigation that involves the villain Menagerie. Meanwhile, Lena shares some news with James, but his reaction isn't what she expected. Nia invites Brainy to her Valentine's Day party.

6733 have watched this episode

s04e13 / What's So Funny About Truth, Justice, and the American Way?

4th Mar '19 - 1:00am
What's So Funny About Truth, Justice, and the American Way?

Manchester Black breaks out of prison with the help of his new team, The Elite, who are set on punishing the anti-alien forces. Supergirl pulls double duty as she tries to apprehend Manchester Black and his team as well as deal with a shocking new development with Ben Lockwood.

6719 have watched this episode

s04e14 / Stand and Deliver

11th Mar '19 - 12:00am
Stand and Deliver

Between Ben Lockwood's new push to stir up the anti-alien movement and the Elite's desire to target Lockwood and his minions, Supergirl is concerned about the safety of the American people - both human and alien. When Lockwood organizes a rally, the aliens decide to peacefully protest. Brainiac and J'onn join the alien march while Supergirl and Dreamer patrol to keep everyone safe. Meanwhile, James picks up his camera again to cover the march for CatCo, and Hayley assigns Alex a job that clashes with her beliefs. When the Elite and Ben Lockwood stir up trouble at the rally, Supergirl is forced to take a stand.

6637 have watched this episode

s04e15 / O Brother, Where Art Thou?

18th Mar '19 - 12:00am
O Brother, Where Art Thou?

Lex Luthor reaches out from prison to enlist Lena into one of his plans and will stop at nothing to get her on board, even if that means leveraging the life of one of her friends.

6585 have watched this episode

s04e16 / The House of L

25th Mar '19 - 12:00am
The House of L

In the wake of Lex Luthor's return, the show flashes back to what he's been doing for the last two years and how his secret machinations and plans have affected Supergirl and Lena.

6486 have watched this episode

s04e17 / All About Eve

1st Apr '19 - 12:00am
All About Eve

Supergirl must deal with the destructive aftermath of Lex's nefarious plans. Shocked at what Lex has created, Supergirl faces her biggest challenge yet.

6464 have watched this episode

s04e18 / Crime and Punishment

22nd Apr '19 - 12:00am
Crime and Punishment

Kara and Lena head to Stryker's Island to search for clues on how to defeat Lex. At the prison, Kara tries to befriend a nosy prisoner, Steve, who may have insight into what Lex was doing, while Lena studies an array of puzzles Lex left behind in the hopes of discovering his whereabouts. While there, a prison riot breaks out and Kara must find a way to stop the prisoners without revealing her secret identity as Supergirl. Meanwhile, Kelly encourages James to talk to someone for his PTSD.

6398 have watched this episode

s04e19 / American Dreamer

29th Apr '19 - 12:00am
American Dreamer

As Kara doggedly works as a reporter to clear Supergirl's name, Dreamer picks up the slack as National City's protector, which leads to a showdown with Ben Lockwood. James takes drastic measures to relieve his PTSD.

6283 have watched this episode

s04e20 / Will The Real Miss Tessmacher Please Stand Up?

6th May '19 - 12:00am
Will The Real Miss Tessmacher Please Stand Up?

Kara and Lena head to Kaznia to hunt down Lex. However, Eve Tessmacher sets a trap for the duo that could ultimately reveal that Kara is Supergirl. Meanwhile, Alex gets a long-awaited phone call, James practices using his powers, and Ben Lockwood takes a dangerous stand inside the D.E.O.

6376 have watched this episode

s04e21 / Red Dawn

13th May '19 - 12:00am
Red Dawn

Kara comes face to face with Red Daughter and the two engage in an epic battle. Determined to find a way to extract the Harun-El, Lena turns to an unlikely source for help - Lillian Luthor. Meanwhile, Alex realizes she's missing parts of her memory, and Brainy, Nia and J'onn set out to track down aliens who have been abducted by Lex.

6318 have watched this episode

s04e22 / The Quest for Peace

20th May '19 - 12:00am
The Quest for Peace

Lex Luthor descends upon Washington, DC and summons Lena and Lillian Luthor to the White House. Supergirl realizes she has one last chance to stop Lex and turns to the power of the press to help her.

6280 have watched this episode
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