SPOILER ALERT: This post contains details on the Supergirl series finale in two parts.
Starting with “The Last Gauntlet”, Supergirl resumes on the right were the previous episode left – with Esme (Mila Jones) in possession of Lex (Jon Cryer) and Nyxly (Peta Sergeant). Hostage in hand, the criminals-turned-lovers propose that Kara, Alex (Chyler Leigh) and the rest of the gang trade their totem poles for the baby. Obviously this is before Lex and Nyxly realize that the totem of Love, absorbed by Esme in the previous episode, is already looking for a new host.
J’onn (David Harewood), Kara, Alex and Kelly (Azie Tesfai) reflect on how they put their loved ones in danger, mourning the recent death of William Dey (Staz Nair). They all agree that they will continue to do “whatever it takes” to get Esme back, including harnessing the power of the sun. But we’ll talk about it later.
From Lex, villain Lillian’s (Brenda Strong) mother warns Nyxly that her son is using her for her own gain, despite her declarations of love. During the episode, the Love totem petals begin to fall indicating that the time for a new guest is near. Lex pulls out the totem, despite Nyxly’s wishes, which then falls into Nyxly’s hands. Nyxly then meets Alex and Kelly, and Dreamer (Nicole Maines) and Brainy (Jesse Rath) who have decided to come and ask for support.
“You are nothing but a nasty little man who lies, cheats and plays mind games to get what he wants. You are just like my father, “she tells him.
Just when Nyxly and the Super Friends meet to make the trade, the totems come together to form the All Stone. Lex appears and bombs the bridge holding Nyxly, Esme, and everyone involved in the trade, splitting the stone into various fragments. Meanwhile in National City, Supergirl absorbs the power of the sun through a government satellite, at Brainy’s suggestion, to achieve near invincibility to Lex and Nyxly’s powers. As a result of solar drainage, National City breaks into chaos with questions from residents as to why Supergirl is sending them into darkness. Secretary Brown (Crystal Balint) arrives and threatens to call an air strike on Supergirl, who then urges Kara to stop the process.
She and J’onn reunite with the other Supes to kick some Lex-Nyxly ass. Plus there’s Lena (Katie McGrath), who also uses her supernatural abilities to ward off their enemies, who are fighting each other. Lillian sacrifices herself for Lex who was supposed to be the target of one of Nyxly’s All Stone explosions. Lex and Nyxly take the fight to National City, taking it in the title simply “Kara”.
There, the team realizes that Lex and Nyxly are draining the citizens of hope, love, and truth to empower their totem poles. Inspired by Orlando’s (Jhaleil Swaby) words of encouragement, Kara delivered uplifting words through the Tower to help the people of Earth believe in themselves and their power. As a result of people’s combined empowerment, Lex and Nyxly are nearly helpless. Nyxly summons otherworldly monsters and Lex summons her villains.
Mon-El (Chris Wood) returns to the scene to save Supergirl from herself, literally, after Lex’s Dark Supergirl tries to destroy the original. He’s just one of the familiar faces returning for the show’s grand finale, including Alex’s mother, Eliza Danvers (Helen Slater). They are joined by the rejuvenated people of National City.
The Ghosts return to Lex’s call, but take Lex and Nyxly away, leveraging their fear. The two are taken to the Phantom Zone.
Now the final act of the finale moves quickly with new chapters for the heroes. The government restores the DEO, a new journalism school is erected in William’s name, and Dreamer begins his LGBTQ + charity.
Alex and Kelly’s big day is finally around the corner, but Kara doesn’t feel the excitement. People have learned not to rely on Supergirl, using the power within themselves to be their own saviors. Kara gets a call from Kat Grant (Joan Juliet Buck) who says she has bought back CatCo and will bring Kara as editor in chief. However, Kara isn’t so sure of her purpose.
The wedding day has finally come for Kelly and Alex. Brainy dedicates himself to Nia, letting go of his obligation towards the future. J’onn accompanies Alex down the aisle and officiates the wedding. Nia takes the bouquet and Brainy shares that he is well aware of a future where he will end up with her.
Kara, Winn (Jeremy Jordan) and Jimmy (Mehcad Brooks) reunite to reflect on their first days together and how they grew up. When Kat calls kara, who says she doesn’t feel complete, she surprises her former writer but reveals her knowledge of Supergirl’s true identity.
“Please, those glasses disguised you as much as Groucho Marx glasses, you should have just added the busy eyebrows and mustache,” Grant said.
Shocked by the news and inspired by Kat’s words of encouragement, Kara appears to be truly herself and lead a life without lead glasses.
The series ends with a touching and intimate segment, which feels like Supergirl hanging with her loved ones, but it seems the actors are reflecting on their time with the series.
“The last six years with all of you have been the greatest adventure I could ever have imagined,” he says. “Can’t wait for the next one.”
Finally, Kat Grant gets her exclusive scoop with a face-to-face interview with her National City savior, a “solo reporter.”
The cast of the Arrowverse series and other talents reacted to the end of the series on social media. See their posts below.