In the second season finale, Supergirl challenges Rhea in battle to save National City. Meanwhile, Cat Grant offers Supergirl some sage advice and Superman returns.
Cat Grant (CALISTA FLOCKHART) returns to National City. Meanwhile, Supergirl grapples with whether or not to obey orders from the President (LYNDA CARTER) regarding Rhea’s latest actions.
When an alien attacks National City, Supergirl and the DEO learn the alien is a Phorian, an otherwise peaceful race with telekinetic powers. Guardian gets a lead on the Phorian’s location but inste...
When Alex is abducted, the kidnapper threatens to kill her unless Supergirl releases a notorious criminal from prison. Even though Supergirl and Maggie have always had different approaches to appre...
Lena’s ex-boyfriend, Jack Spheer (guest star RAHUL KOHLI), comes to National City to unveil his big breakthrough in nano-technology, which has the potential to eradicate all diseases. Lena asks Kar...
When a large bounty is put out on Supergirl, aliens from near and far attack National City intent on taking out the Woman of Steel. Meanwhile, Alex and Maggie run into Maggie’s ex-girlfriend, Emily...
A new villain (guest star TERI HATCHER) comes to National City, putting Supergirl on high alert. Meanwhile, Winn’s girlfriend, Lyra (guest star TAMZIN MERCHANT), gets Winn in trouble with the law. ...
As Alex searches for Jeremiah, and Kara investigates a series of alien kidnappings, the sisters realize they must break the rules in order to foil a new Cadmus plot. In an effort to get Snapper Car...
When Jeremiah Danvers (guest star DEAN CAIN) is rescued from Cadmus, Alex and Kara are thrilled to have their father back. The Danvers arrange a family dinner to celebrate, but things go awry when ...
When Mr. Mxyzptlk (guest star PETER GADIOT), a magical imp, shows up on Earth and declares his love for Kara, she tries to let him down easy, thinking him harmless. However, he decides it’s a chall...
After Metallo (guest star FREDERICK SCHMIDT) breaks out of prison and frees Lillian Luthor (guest star BRENDA STRONG), the police blame Lena for his escape and arrest her. Despite overwhelming evid...
Armek (guest star TERRELL TILFORD), a White Martian, descends on National City intent on taking M’gann back to Mars to face her punishment as a traitor. Hank and Supergirl determine the best way to...
When an alien attacks National City, Supergirl and the DEO learn the alien is a Phorian, an otherwise peaceful race with telekinetic powers. Guardian gets a lead on the Phorian’s location but inste...
In the second season finale, Supergirl challenges Rhea in battle to save National City. Meanwhile, Cat Grant offers Supergirl some sage advice and Superman returns.
Kara’s friends must find a way to save her life when a parasitic alien attaches itself to her and traps her in a dream world where her family is alive and her home planet was never destroyed. Also,...
When Alex is abducted, the kidnapper threatens to kill her unless Supergirl releases a notorious criminal from prison. Even though Supergirl and Maggie have always had different approaches to appre...
After Livewire (recurring guest star BRIT MORGAN) seemingly breaks out of prison, Supergirl is intent on recapturing her. She takes Mon-El with her when she sees Livewire attack the NCPD, but thing...
Kara’s two identities are stretched thin when Supergirl must protect National City from a series of bombings and Kara is tasked with babysitting Cat’s son, Carter (guest star LEVI MILLER). Also, Ja...
Kara and her friends must rely on their inner strength and courage when an earthquake strikes National City. Also, Alex’s mistrust of Hank reaches a breaking point when the earthquake traps them in...
With Astra in captivity at the DEO, her husband, Non (recurring guest star CHRIS VANCE), captures Hank, leading to a tense standoff between the two sides. Also, Kara continues to refute Cat’s alleg...
When Cadmus attacks National City with a kryptonite-powered villain who ends up seriously hurting Supergirl, Superman blames Hank because the kryptonite was stolen from the DEO. Meanwhile, Kara’s f...