Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
20 Episodes 2021 - 2021
Episode 1
Tue, Mar 30, 202142 mins
Team Supergirl splits up to stop Lex's plan to make half the population adore him, and kill the other half. Lena has to discover if Supergirl will trust her after Lena joined forces with her stepbrother. Brainiac-5 apologizes to Dreamer for turning against her and the others, and J'onn fears that the mental binding ritual necessary to stop Lex's satellites may reveal his subconscious thoughts and disrupt the process.
Episode 2
Tue, Apr 6, 202142 mins
J'onn and Alex recruit a reluctant ally to gain access to the Phantom Zone and rescue Supergirl. In the Zone, Supergirl encountered an unexpected ally. Meanwhile, Lex goes on trial for his crimes against humanity and Lena has to decide whether to testify against him or not.
Episode 3
Tue, Apr 13, 202142 mins
Supergirl loses Zor-El in the Phantom Zone, but finds a new ally. Meanwhile, a Phantom transforms Silas into one of its own and sets out to convert more humans to Phantoms, and Lex and Lena continue their game of cat-and-mouse as they try to trump each other.

Episode 4
Tue, Apr 20, 202138 mins
The tower team try to deal with the spread of Prime "infecting" the citizens of National City, turning them into Progeny. To stop Prime, Alex will have to make the ultimate sacrifice - and Lean proves uncooperative. In the Phantom Zone, Supergirl has an ally turn against her as she and Zor-El find a way to escape via the Anchor.
Episode 5
Tue, Apr 27, 202142 mins
Nia and Brainy attempt to save Supergirl from the Phantom Zone by time traveling back to Kara's home in 2009. While determined to secure the item needed to help Supergirl, Brainy is worried about keeping a low profile so as not to alter the future timeline. However, when their ship crashes upon arrival, a young Kara Danvers is the first on the scene. Meanwhile, a young reporter named Cat Grant sets her sights on Midvale as she suspects there is a big story in the small town.
Episode 6
Tue, May 4, 202141 mins
Young Kara experiences kryptonite for the first time, Nia and Brainy are trapped by invading aliens, and a young Cat Grant may be the reason Supergirl never gets out of the Phantom Zone.
Episode 7
Tue, May 11, 202142 mins
Supergirl falls victim to the Phantoms' Fear Visions, and it's up to Zor-El to keep her from falling permanently into despair. Meanwhile, the others fly the Tower into the Zone and must face their own personal fears if they're to find and rescue Supergirl.
Episode 8
Tue, Aug 24, 202142 mins
As Supergirl and Zor-El make their return to National City, they are determined to keep the Phantom Zone behind them and enjoy being superheroes together. Unfortunately, their overzealous efforts backfire, creating a whole new threat to National City.
Episode 9
Tue, Aug 31, 202142 mins
Kelly meets Joey, a young orphaned alien boy, who is acting out in foster care because he fears there is something wrong with his brother Orlando, who is incarcerated. Kelly asks Kara to help her investigate and they stumble upon abuse at the prison. Meanwhile, Nyxly crashes one of Nia's dreams and asks her for help.
Episode 10
Tue, Sep 7, 202142 mins
Supergirl intervenes when a building in the Heights that was set aside for low income housing is suddenly at risk to be sold to a major corporation. Supergirl recruits Orlando to help her win over the city, but things go awry when Nyxly shows up. Meanwhile, Nia trains with her mother.
Episode 11
Tue, Sep 14, 202142 mins
Supergirl and team must stop Nyxly from vanquishing a familiar face from Supergirl's past - Mr. Mxyzptlk. Mxy returns and explains Nyxly's dark history to the super team in the best way he knows how - in song form. Meanwhile, Lena visits her mother's birthplace in Ireland, eager to dig into her past but is shocked by the small town's icy reception towards her.
Episode 12
Tue, Sep 21, 202142 mins
The collapse of the Ormfell causes respiratory problems in anyone nearby, and Councilwoman Rankin gains magical powers. Kelly believes the two are connected, and tries to convince the Super Friends to join her in her efforts to help the people.
Episode 13
Tue, Sep 28, 202142 mins
Nxyly tries to gain the first Totem, of Courage. It is split in two, causing raw courage to fill everyone in the vicinity. Sentinel, J'onn, Brainiac-5, and Dreamer are all affected, as are a scientist who discovers the courage to unleash her device which could destroy National City. Meanwhile, Supergirl and Nxyly both try to overcome tests of courage to gain control of the Totem.
Episode 14
Tue, Oct 5, 202142 mins
Lena is uncertain about using her magical abilities to help Supergirl retrieve the second totem from Nyxly. William struggles to write a story on the Super Friends that makes both the heroes and Andrea happy. Meanwhile, Kelly is thrilled Esme has found a new home, but things go awry and the little girl's future is put in danger.
Episode 15
Tue, Oct 12, 202142 mins
Nyxyl tries to get the Hope Totem, and the Super Friends try to hold the world together when hope is lost. Kelly and Alex deal with their first day as mothers when Esme fears that her new family will abandon her, and Nxyly realizes that there is an easier way to get the Totems stealing them one at a time.
Episode 16
Tue, Oct 19, 202142 mins
Kara lands her dream story for Catco but when the city is suddenly attacked by a nightmare monster at the same time as her interview, she is forced to take a serious look at her life and decide if she can continue to live as both Kara and Supergirl. As Dreamer takes the lead on the search for the Dream Totem, which can vanquish the nightmare monster in National City, she realizes she needs to ask her sister Mauve for help. Old wounds resurface as the two sisters come face to face.
Episode 17
Tue, Oct 26, 202142 mins
While the Super Friends try to get the Love Totem and use the power of the other Totems to capture Nxyly, Lex reveals his motive to the imp for helping her. Andrea gives William an ultimatum, and Alex tries to make the perfect wedding proposal to Kelly.
Episode 18
Tue, Nov 2, 202142 mins
Supergirl is determined to keep everyone safe from Lex and Nyxly so she doubles down on patrol, especially as Alex and Kelly's bachelorette party is coming up. Alex is torn between duty and finally allowing herself the time to enjoy her new family. Brainy receives heartbreaking news, and William clashes with Andrea over her recent coverage of Lex.
Episode 19
Tue, Nov 9, 202142 mins
After taking Esme prisoner, Nxyly and Lex have a difference of opinion on how to remove the Love Totem from the girl. Meanwhile, the Super Friends come up with a plan to supercharge Supergirl so that she can take on the villains, and Alex makes a different decision.
Episode 20
Tue, Nov 9, 202147 mins
Supergirl must restore humanity to humanity when Lex and Nxyly steal it to power their battle against each with the pieces of the Allstsone. Afterward, Alex and Kelly get married, and some old friends attend the wedding. Kara gets some advice and a job offer from Cat Grant.