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"Luthors" is the twelfth episode of the second season of Supergirl, and the thirty-second episode overall. It aired on February 13, 2017.

Synopsis

After Metallo breaks out of prison and frees Lillian Luthor, the police blame Lena for his escape and arrest her. Despite overwhelming evidence, Kara 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 introduces Maggie to the gang.[1]

Plot

In a flashback to twenty years ago, Lillian Luthor is teaching her son Lex chess. Lionel arrives home with newly adopted Lena, which Lillian is apprehensive to at first. Lex offers to teach Lena chess which causes Lillian to warm up to the idea of Lex having a sister.

In the present, Kara and Mon-El are at the Alien Bar watching a newscast of Lillian's upcoming trial and awkwardly catch up with each other. Kara then meets up with James, Winn, and J'onn. Alex arrives and introduces Maggie to the group as her girlfriend. Mon-El brings over drinks and congratulates the couple. Maggie challenges Winn to a game of pool. Kara and James discuss the trial. Kara defends Lena's actions, but James is convinced that Lena is using Kara.

Later, Kara visits Lena to comfort her and bring her donuts. Kara advises her to go see her mother, despite the rift between them.

Lena visits her mother in prison. Lena tells Lillian that growing up, she felt unwanted and like an outsider to the family. Lillian tells Lena that Lionel had an affair with her biological mother. After she died, the Luthors adopted her but Lionel did not like Lillian spending time with Lena so she focused on Lex. Now, Lillian wished to have a second chance with Lena. Meanwhile, John Corben receives a package of kryptonite in prison.

At the trial, Corben is being cross-examined. He claims Cadmus saved him and that aliens should be wiped from Earth. He proclaims that Lillian wants to save them all but Supergirl silenced her. Corben then fires a kryptonite beam at the prosecutor and frees Lillian. Supergirl tries to stop them but Corben fires a beam, destroying a crane. Supergirl is forced to save the people from the falling crane as the two get away.

Later, Maggie is telling Kara and Alex that the prison only had one visitor last night, Lena Luthor. Kara goes to Lena and tells her of the situation, but Maggie and the NCPD show up and arrest Lena due to damning security footage showing her taking kryptonite out of her safe.

Kara walks into CatCo in chaos. James tells her they are crashing the cover and putting Lena on the cover. Kara defends her friend to James and Snapper, but James sides with Snapper, believing that Lena is deceiving Kara. Kara bumps into Eve, who tells her that she and Mon-El broke up because he would only talk about Kara during their dates.

Corben arrives and breaks Lena out of prison. Guardian tries to intervene but Corben overpowers him and escapes with Lena.

Alex tends to James's wounds at the D.E.O. infirmary. James informs them that something was wrong with Corben's kryptonite core. Kara promises them that she will save Lena. James and J'onn insist she is guilty. James talks about Clark and Lex's history and prior friendship. He asks Kara why she isn't willing to trust him, but Kara leaves.

Mon-El catches Kara venting in the training room. He tells Kara that he admires her ability to believe in the good in others that other people don't. Kara admits that she was mad that Mon-El was dating Eve, but when he asks her why, she leaves without answering.

In the back of a Cadmus truck, Lena is angry that Lillian freed her. Lillian assured her that the public wouldn't have believed her anyways. She pleads for Lena to join Cadmus. Meanwhile, Corben's condition worsens. They arrive at Lex Luthor’s mountain vault, with Lillian explaining that Lex kept caches stored with technology that could stop Superman. Lillian tells Lena about how any Luthor can open the vault. Lena then realizes that Lillian only freed her to open the vault. She refuses to open it for them, but Hank Henshaw forces hand onto the scanner, opening Lex's stash.

At the D.E.O., Winn discovers that Cadmus hacked the security footage to make it appear as if Lena took kryptonite from the safe to frame her. They scan for and find a kryptonite signature in the mountains. The scans also show that the kryptonite is synthetic and decaying rapidly. Kara races off to save Lena.

Cadmus plunders Lex's vault. Lillian discovers one of Lex's finished projects stored in a small cube. Supergirl arrives to stop them, but Lillian disables her with a sonic grenade. Corben's kryptonite heart starts fluctuating. He fires a kryptonite beam at Supergirl and holds her hostage. Martian Manhunter arrives on scene and saves Supergirl. Supergirl grabs Lena and they escape just as Corben goes critical and explodes.

The next day, Kara arrives at CatCo and gloats to Snapper about being right about Lena. Snapper brushes it off and tells Kara to get them an exclusive with Lena. James apologizes to her about being wrong about Lena. Kara tells him that she wants them to be friends again. They both agree to a game night. At Lena's office, Lena thanks Kara for the favorable story and being there for her when no one else was. After Kara leaves, Lena reminisces to twenty years ago about beating Lex at a game of chess as she stares at her office chessboard in present day.

Mon-El arrives at Kara's apartment and explains that they are both really different but that despite his flaws, Mon-El proved her wrong about him. They nearly kiss, until a portal opens and Mxyzptlk interrupts them, professing his love for Kara.

Trivia

  • The episode's title is a reference to the Luthor family: Lex, Lena, Lionel and Lillian.
  • This episode confirms that Lena is physically at least a couple of years younger than Kara.
  • This episode introduces Lex Luthor as a young boy.

Behind the Scenes

  • When Lex's vault was shown, his war suit from the comics can be seen.

Gallery

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References