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19 Episodes 2019 - 2020
Episode 1
Sun, Oct 6, 201942 mins
Kara is surprised to find CatCo has a new owner who has brought in a star reporter; new couples emerge and explore their budding relationships; J'onn J'onzz receives an unexpected visitor.

Episode 2
Sun, Oct 13, 201942 mins
Supergirl, Alex and Brainiac thwart an alien attack while William investigates Kara; J'onn J'onzz and Kelly use Obsidian tech to solve a problem.

Episode 3
Sun, Oct 20, 201942 mins
Kara tries to mend her relationship with Lena; J'onn J'onzz takes a deep dive into his memories; Kelly tries to help an old friend.

Episode 4
Sun, Oct 27, 201942 mins
Kara's investigation into William Dey's "criminal" activities results in the shocking revelation he is not who she thinks. Meanwhile, the conflict between Malefic and J'onn J'onzz reaches a boiling point.

Episode 5
Sun, Nov 3, 201942 mins
A NEW DANGER ARISES - On the eve of the worldwide launch of Andrea Rojas's VR contact lenses, Kara and William team up on an investigation that exposes a terrorist plot. Kelly and Alex celebrate an anniversary, but Alex's safety is in jeopardy.

Episode 6
Sun, Nov 10, 201942 mins
The DEO is using William to reach the underlying Russell, his best friend, in Rip Roar. There is a breach. In the confusion, the Shadow is after Rip Roar but is unable to grab him. The Shadow escapes to her home and unmasks. It is Andrea. She heads for Lena's hoping for another chance to get inside the DEO. She is sure that Leviathan, the group that forced him to create the tidal wave, is preparing to kill him. She wants to save him. Lena tells Andrea that she will not help, that they are not friends. A series of flashbacks ensues to uncover where Lena's resentment arose. As a girl, her mother would tell her stories of a girl who was looking for the Medallion of Arcata. It would give the holder the power to bend shadows to his/her will. Lena relates this story to Andrea. Later, a satellite image of Costa Rica shows what appears to be the maze-like image associated with the Medallion. Lena and Andrea go to Central America to check it out. The ground where Andrea is standing suddenly drops, taking her with it. She is in a underground chamber with a stone bearing the actual Medallion at its center. She is approached by a messenger from Leviathan who tells her that she must take it, keep it on her person, and never speak of it to anyone. When Lena manages to lower herself on a rope, she sees the Medallion is gone. Andrea says nothing about it. Lena spots it on a chain around Andrea's neck when she is in London. She feels her trust was violated, hence not wanting to help her now. Through her, Russell comes into contact with Leviathan bioengineers who turn him into Rip Roar. Andrea finally talks Lena into helping her. She gives the Medallion to Lena who activates her Supergirl alert drawing her away from the DEO so that Shadow can get in. Lena also initiates a psychic inception attack. DEO personnel are frozen or doing her bidding. This allows her to free Rip Roar, but Leviathan agents are standing by and shoot him. Leviathan is now looking into Tess Mercer's memories.

Episode 7
Sun, Nov 17, 201942 mins
Margot shows up at Lena's apartment seeking the Medallion of Arcata but fails because Lena's home security system anticipated such a move. The alien Rama Kahn, Leviathan agent, declares he must take action. As Lena is giving a dedication speech about donating land for a park, Leviathan shows up shaking the ground at will. Lena anticipated this, too, and has her watch poised to call Supergirl when she jumps off the cliff to avoid him. Meanwhile, J'onn begins to have visions of Malefic. When he asks his father's spirit for help, he suggests J'onn should attempt to bond with his brother, no matter the outcome. The bond is successful, and Malefic forgives J'onn completely. Back at the D.E.O., Brainy discovers what he thinks is Leviathan's location and travels there with Alex. It is a bomb wrapped in Rip Roar's armor. Alex suffers a concussion. Lena is being clever about gaining access to weapons stored in the Fortress of Solitude. She maneuvers Kara into taking her there to search for a weapon that can defeat Leviathan. Suddenly, they are attacked by Rama Khan. Because he couldn't sense Supergirl or Lena, he knew they had to be there. While fighting him, Kara manages to suppress Khan's powers, forcing him to retreat. Afterwards, Lena admits to Kara she killed Lex, knew her secret before she told her, and rants about how Supergirl broke her trust and deserves to feel her pain. Lena ignores Kara's attempts to reason with her. She asks if she can access the quantum computer to send a message. Supergirl acquiesces. Lena programs it to consider Supergirl an intruder. Kara is trapped in an ice cell full of kryptonite gas. Lena grabs a terrible weapon known a Myriad. Superman hid it there because its effects were so terrible. Back at the DEO, Kelly and Alex bond even closer following the attempt on Alex's life. Brainy pieces together bomb fragments and sees a three-armed shape that is a Leviathan. He recognizes that he has seen the same pattern elsewhere. He takes Alex with him to a dilapidated looking mansion presuming it is the headquarters of Leviathan. He and Alex enter and descend in an elevator. It releases them into a cave tunnel where Leviathan agent Gamemnae appears to have them at her mercy.

Episode 8
Sun, Dec 1, 201942 mins
Alex and Brainy go to the Fortress of Solitude to rescue Kara from ice cell filled with kryptonite gas. Lena has fled to Lex's stronghold beneath Mt. Norquay where she and Hope (Eve cyborg) are preparing to launch No Nocere using Myriad. With that in place, she can use Q-waves to control the entire human populace for peaceful ends. Kara goes there to talk her out of doing that and is met with canon fire. When the first round of charges doesn't stop her, they cycle to kryptonite shells. Lena is unwilling to kill her and disables them. Alex tells Kara that Lena is beyond redemption, but Kara disagrees. She talks Brainy into letting her converse with Lena via a hologram link. During the unsuccessful visit, the DEO downloads a virus to take out Myriad. Kara and J'onn head to the La Brea Tar Pits where Khan has forced Andrea to help him create a super-volcano that will result in a cleansing extinction event. The two superheroes are able to impede its start. As the launch of No Nocere is only minutes away, Alex has Claymore aimed at Mt. Norquay. If used, it will kill Lena. J'onn argues that Malefic could use his own Q-waves to repel the Q-waves coming from Lena's device. Alex is reluctant to trust Melefic to help the DEO after all the trouble he has caused. Brainy helps sway her to acquiesce. J'onn wrests the staff out of the underground chamber where Andrea is being held. This allows Kara to subdue Khan. Andrea seals him temporarily in the tar pit before they attack Leviathan's hideout. Leviathan operative Gamemnae tells Khan that he has grown weak, that she is relieving him of further duties. Malefic is able to overcome Lena's No Nocere allowing DEO agents to infiltrate her hideaway. When Lena and Hope are discovered, the Hope grabs Lena's gun and pretends she is holding Lena as a hostage. She takes full blame for No Nocere to allow Lena to go free. J'onn convinces his brother Malefic to return to Mars and help restore peace there. AS Malefic flies off, the Monitor appears J'onn. He reveals that he brought Malefic to Earth to test J'onn for an impending crisis. The Monitor has been able to resurrect Lex, preparing him for the upcoming crisis, too. This will play to Lex's desire to become a hero in exchange for helping him with a favor involving Lena.

Episode 9
Sun, Dec 8, 201942 mins
The Monitor sends Harbinger to gather the worlds' greatest heroes - Supergirl, The Flash, Green Arrow, Batwoman, White Canary, The Atom and Superman - in preparation for the impending Crisis. With their worlds in imminent danger, the superheroes suit up for battle while J'onn and Alex recruit Lena to help them find a way to save the people of Earth-38.

Episode 10
Sun, Jan 19, 202042 mins
The subsequent complications from the Crisis leave Supergirl to face a chaotic threat.

Episode 11
Sun, Jan 26, 202042 mins
Winn Schott returns from the future just as Supergirl is pursuing a Toyman copycat.

Episode 12
Sun, Feb 16, 202042 mins
Supergirl helps Winn overcome his greatest fear; Brainy must choose whether to help Alex find evidence against Lex or continue secretly working for him.

Episode 13
Sun, Feb 23, 202042 mins
Mxyzptlk returns with a proposition for Kara; Kara must decide if she wants to change history to become friends with Lena again.

Episode 14
Sun, Mar 8, 202042 mins
Lex forces Supergirl to protect Andrea from an anti-tech extremist as Andrea prepares to roll out Platinum Obsidian. Alex goes through her first day of being on her own rather than with the DEO, Lex tries to forge a partnership with Leviathan, and Kara considers whether refusing to accept William's dinner invitation was a mistake.

Episode 15
Sun, Mar 15, 202042 mins
While Alex and J'onn look of a man who disappeared into Obsidian's VR, in the real world Nia deal with a hate group member who is targeting the trans community - and targets Nia's roommate Yvette. Meanwhile, Kelly realizes that Obsidian isn't fixing the glitches that she's reported to them.

Episode 16
Sun, Mar 22, 202042 mins
After learning of Jeremiah's death, Alex slips into depression because she couldn't save him. She enters Platinum VR and takes on the role of Supergirl, but soon finds herself unable to remember reality. Meanwhile, Kelly realizes that the glitched failsafe wasn't fixed as she requested, and Kelly and William draw one step closer to Lex and Gemma's plans for Platinum VR.

Episode 17
Sun, May 3, 202042 mins
Lex's plans since Crisis and his emergence as a hero on the new Earth are revealed, as he secretly manipulates Lena, Supergirl, Eve, and Leviathan against each other to undermine Leviathan and bring about the death of the Kryptonians that he hates.

Episode 18
Sun, May 10, 202042 mins
Lex gives a gift to Leviathan so that they can send Rama to acquire what they need to stop Supergirl. Meanwhile, Leviathan continues its plan to bring humanity under its control, and Lena struggles to get Non Nocere to work and faces a prison riot along with Lex and Steve.

Episode 19
Sun, May 17, 202042 mins
Supergirl realizes that in order to stop Lex and Leviathan she must work with the one person she never thought she'd trust again - Lena. Nia keeps dreaming about Brainy but struggles with what the dreams are trying to tell her. Meanwhile, Brainy realizes there is only one way to stop Lex.
