Highest Rated Episodes
Supergirl and team take on Serena in an epic battle for Earth.
Kelly is horrified when the Ormfell building implodes, injuring many in the community, including Joey. However, her horror ...read more Kelly is horrified when the Ormfell building implodes, injuring many in the community, including Joey. However, her horror quickly turns to frustration when she realizes that the hospital is overwhelmed, people are getting sicker, and no one is coming to help - including Supergirl who is busy fighting Nyxly. Knowing that she can make a difference, Kelly embraces her power and fully steps into her role as Guardian. Joined by Supergirl, Alex, Diggle and team, Guardian leads the way to restoring justice to the fallen community. show less
Kara travels with Nia to the latter's hometown and discovers that Nia is inheriting the Dreamer power from her mother... ...read more Kara travels with Nia to the latter's hometown and discovers that Nia is inheriting the Dreamer power from her mother... which has skipped Nia's sister Maeve. In National City, an outbreak of a new drug rage starts and Alex investigates while asking J'onn to determine if she's having memory problems. show less
Kara attempts to mend her relationship with Lena. J'onn J'onzz takes a deep dive into his memories while Kelly tries to ...read more Kara attempts to mend her relationship with Lena. J'onn J'onzz takes a deep dive into his memories while Kelly tries to help an old friend. show less
Supergirl and Lena go to Stryker's Island to check out Lex's cell, and find a clue to his schemes. Supergirl is declared ...read more Supergirl and Lena go to Stryker's Island to check out Lex's cell, and find a clue to his schemes. Supergirl is declared a criminal and is forced to question whether she does more harm or good, while James deals with the fallout from being injected with the serum. show less
The Monitor sends Harbinger to gather the worlds’ greatest heroes - Supergirl, The Flash, Green Arrow, Batwoman, White Canary, ...read more 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 show less
On the eve of the worldwide launch of Andrea Rojas's VR contact lenses, Kara and William team up on an investigation that ...read more 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. show less
Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena ...read more Supergirl is stunned to discover that a part of Krypton survived. Meanwhile, Alex is attacked while out with Ruby, and Lena considers how far she will go to keep Reign contained. show less
Lex proceeds to lay an intricate plan to bring Lena closer to him, defeat Leviathan's latest attack, and pit Supergirl and ...read more Lex proceeds to lay an intricate plan to bring Lena closer to him, defeat Leviathan's latest attack, and pit Supergirl and team against Leviathan. It is also revealed how Lex came into power after Crisis. show less
Kelly meets Joey, a young orphaned alien boy, who is acting out in foster care because he fears there is something wrong with ...read more 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. show less
Kara prepares to accept a Pulitzer for her writing, and comes to a decision about sharing her secret identity with Lena. A new ...read more Kara prepares to accept a Pulitzer for her writing, and comes to a decision about sharing her secret identity with Lena. A new villainess and former foe emerges from the Phantom Zone to fight John, and Lena sells CatCo to an associate who has big changes in store for the organization. show less
As the Super Friends brave the Phantom Zone to bring Supergirl home, each member of the team is confronted by visions of their ...read more As the Super Friends brave the Phantom Zone to bring Supergirl home, each member of the team is confronted by visions of their worst fear. show less
Supergirl continues to fight Nyxly for the remaining totems but after Nyxly kidnaps William, Supergirl realizes she needs to ...read more Supergirl continues to fight Nyxly for the remaining totems but after Nyxly kidnaps William, Supergirl realizes she needs to take a more proactive stance to keep National City safe. Meanwhile, Alex faces the biggest challenge of her life. show less
When Lex Luthor appears by Nyxly's side, Supergirl and team must deal with the emotional fallout of facing their two biggest ...read more When Lex Luthor appears by Nyxly's side, Supergirl and team must deal with the emotional fallout of facing their two biggest foes at the same time. Alex makes plans for the perfect proposal to Kelly, but work keeps getting in the way. show less
Kara's investigation into William Dey's "criminal" activities results in the shocking revelation he is not who ...read more 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. show less
Mxyzptlk returns with a proposition for Kara – what if she could go back in time and tell Lena her secret before Lex did, ...read more Mxyzptlk returns with a proposition for Kara – what if she could go back in time and tell Lena her secret before Lex did, would things turn out different? Looking back over key moments throughout the series, Kara must decide if she wants to change history to become friends with Lena again. show less
In the epic series finale, Supergirl is joined by familiar faces from the past to help her stop Lex and Nyxly for good. ...read more In the epic series finale, Supergirl is joined by familiar faces from the past to help her stop Lex and Nyxly for good. Meanwhile, Alex and Kelly prepare to walk down the aisle. show less
Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, ...read more Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, Lena joins the Super Friends on a mission but finds she disagrees with their plan of action against the Phantoms and wonders if she is truly ready to be a part of the team. show less
Lena is uncertain about using her magical abilities to help Supergirl retrieve the second totem from Nyxly. William struggles to ...read more 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. show less
With his P.I. shingle newly hung outside his office, J'onn welcomes new clients. Trying to take her mind off what happened ...read more 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. show less
Supergirl and team must stop Nyxly from vanquishing a familiar face from Supergirl's past - Mr. Mxyzptlk. Mxy returns and ...read more 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. show less
Kara lands her dream story for Catco but when the city is suddenly attacked by a nightmare monster at the same time as her ...read more 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. show less
Supergirl makes a new ally. Lena and Lex battle for control of Luthor Corp.
Flashbacks reveal young Kara experiencing kryptonite for the first time; Nia and Brainy are trapped by invading aliens; a young ...read more Flashbacks reveal young Kara experiencing kryptonite for the first time; Nia and Brainy are trapped by invading aliens; a young Cat Grant may be the reason Supergirl never gets out of the Phantom Zone. show less
Nia and Brainy attempt to save Supergirl from the Phantom Zone by time traveling back to Kara's home in 2009. While ...read more 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. show less
Nia's roommate, Yvette, is attacked by a man targeting Dreamer because he doesn't like that Dreamer is transgender and ...read more Nia's roommate, Yvette, is attacked by a man targeting Dreamer because he doesn't like that Dreamer is transgender and wants her to quit being a superhero. Determined to protect her community from additional harm, Dreamer refuses to give into his threats and puts herself in the line of fire to stop him. Supergirl stands by Dreamer and enlists additional help from Brainy. Meanwhile, Alex, J'onn and Kelly attempt to rescue a man stuck inside a virtual reality escape room. show less
As Braniac lays close to death after trying to stop Lex , Supergirl and team soar in to save him, engaging in an epic battle ...read more As Braniac lays close to death after trying to stop Lex , Supergirl and team soar in to save him, engaging in an epic battle with Gamenmae. After beating Leviathan, Supergirl turns her attention to Lex who has used the Obsidian platform to brainwash half the world to love him and follow him at all costs, no matter what horrible things he does. Knowing how dangerous this makes her brother, Lena enlists the entire team - Alex, J'onn, Dreamer, Kelly and Braniac - to help, but Supergirl realizes that the only way to truly stop Lex is to sacrifice herself. show less
Kara comes face to face with Red Daughter and the two engage in an epic battle. Determined to find a way to extract the ...read more 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. show less
When Reign starts hunting Ruby, Supergirl and Alex work together to keep her safe. Supergirl and J’onn look to Sam’s mother ...read more When Reign starts hunting Ruby, Supergirl and Alex work together to keep her safe. Supergirl and J’onn look to Sam’s mother for advice on how to stop Reign and come away with some shocking news. show less
Supergirl intervenes when a building in the Heights that was set aside for low income housing is suddenly at risk to be sold to ...read more 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. show less
Supergirl, Alex, and Brainiac thwart an alien attack while William investigates Kara. J'onn J'onzz and Kelly use ...read more 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. show less
Colonel Haley is upset after Supergirl responds to a distress call from a Navy ship that turned out to be a deadly alien attack. ...read more 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.. Meanwhile, Brainiac-5 tries to persuade Nia to embrace her superpowers but she misinterprets his motives. show less
Lex tasks Supergirl with protecting Andrea from an anti-tech extremist, but his nefarious purpose goes beyond merely keeping ...read more Lex tasks Supergirl with protecting Andrea from an anti-tech extremist, but his nefarious purpose goes beyond merely keeping Andrea alive. Meanwhile, Lena moves forward with Non Nocere, with Lex's help. show less
When Tanya, a disciple of Coville’s, escapes from what’s left of his cult, she gives Kara and James a journal that could ...read more When Tanya, a disciple of Coville’s, escapes from what’s left of his cult, she gives Kara and James a journal that could hold the key to saving Sam. Someone learns Guardian’s identity and threatens to expose James if he doesn’t do what they ask. James contemplates what it means to be a black vigilante without a mask in America. show less
Supergirl and team race Nyxly for control of a magical totem that controls courage. Supergirl and Nyxly battle and each get a ...read more Supergirl and team race Nyxly for control of a magical totem that controls courage. Supergirl and Nyxly battle and each get a piece of the totem but learn the first person to pass the test of courage will gain control of the entire thing. Meanwhile, Lena is still struggling to make sense of her newfound gift. show less
In the penultimate buildup to the season finale, Supergirl and the super friends take drastic action after a loved one is ...read more In the penultimate buildup to the season finale, Supergirl and the super friends take drastic action after a loved one is kidnapped by Nyxly and Lex. An unlikely ally steps in to help the team. show less
Supergirl and the team go head to head against Rama Khan and Leviathan. Meanwhile, Lena and Lex must join forces when Project ...read more Supergirl and the team go head to head against Rama Khan and Leviathan. Meanwhile, Lena and Lex must join forces when Project Non Nocere fails, leaving the two siblings in serious danger. show less
Supergirl finally learns the truth about Lena while tangling with Leviathan. J'onn J'onnz makes a discovery about his ...read more Supergirl finally learns the truth about Lena while tangling with Leviathan. J'onn J'onnz makes a discovery about his brother's whereabouts. show less
Supergirl is determined to keep everyone safe from Lex and Nyxly so she doubles down on patrol, especially as Alex and ...read more 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. show less
As Supergirl and Zor-El make their return to National City, they are determined to keep the Phantom Zone behind them and enjoy ...read more 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. show less
Kara and Lena head to Kaznia to hunt down Lex. However, Eve Tessmacher sets a trap for the duo that could ultimately reveal that ...read more 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 DEO. show less
Kara (Melissa Benoist) turns on her friends and the citizens of National City after being exposed to Red Kryptonite makes her ...read more Kara (Melissa Benoist) turns on her friends and the citizens of National City after being exposed to Red Kryptonite makes her malicious and dangerous. show less
Supergirl is hurt by a kryptonite-powered villain sent by Cadmus to attack National City. Superman blames Hank since the ...read more Supergirl is hurt by a kryptonite-powered villain sent by Cadmus to attack National City. Superman blames Hank since the kryptonite was stolen from the DEO. In the meantime, Kara's first day at her new job doesn't go as planned when she meets her new boss. show less
In the Season 2 premiere, Supergirl's famous cousin arrives on the scene to help her deal with a new threat to the citizens ...read more In the Season 2 premiere, Supergirl's famous cousin arrives on the scene to help her deal with a new threat to the citizens of National City. While having Clark Kent around is a thrill for Kara, their family reunion leaves Alex feeling a bit left out. Meanwhile, Cat Grant encourages her young protégé to make a bold decision in both her personal and professional lives; and Hank and Supergirl are stunned by the alien pod that crashed to Earth. show less