Episode 1
Pilot
After 12 years of keeping her powers a secret on Earth, Kara Zor-El, Superman's cousin, decides to finally emb...
Episode 2
Stronger Together
When Kara’s attempts to help National City don't go according to plan, she must put aside the doubts that she...
Episode 3
Fight or Flight
Supergirl’s powers are tested when Reactron, one of Superman’s formidable enemies, arrives in National City an...
Episode 4
Livewire
Kara's Thanksgiving may be ruined when she suspects her foster mother, Dr. Danvers, who is coming to town, dis...
Episode 5
How Does She Do It?
Kara’s two identities are stretched thin when Supergirl must protect National City from a series of bombings a...
Episode 6
Red Faced
Personal and professional stress get the better of Kara when she goes too far during a training exercise again...
Episode 7
Human for a Day
Kara and her friends must rely on their inner strength and courage when an earthquake strikes National City. A...
Episode 8
Hostile Takeover
Kara goes toe-to-toe with Astra when her aunt challenges Kara’s beliefs about her mother. Also, Cat is threate...
Episode 9
Blood Bonds
With Astra in captivity at the DEO, her husband, Non, captures Hank, leading to a tense standoff between the t...
Episode 10
Childish Things
Kara does her best to support Winn when his father, the supervillain Toyman, breaks out of prison and seeks ou...
Episode 11
Strange Visitor from Another Planet
Kara must help Hank face his painful past when a White Martian, a member of the alien race that wiped out his...
Episode 12
Bizarro
Kara faces off against her mirror image when Bizarro, a twisted version of Supergirl, sets out to destroy her....
Episode 13
For The Girl Who Has Everything
Kara’s friends must find a way to save her life when a parasitic alien attaches itself to her and traps her in...
Episode 14
Truth, Justice and the American Way
Supergirl does battle with the deadly Master Jailer, who is hunting and executing escaped Fort Rozz prisoners....
Episode 15
Solitude
Kara travels to Superman’s Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being w...
Episode 16
Falling
Kara turns on her friends and the citizens of National City after being exposed to Red Kryptonite makes her ma...
Episode 17
Manhunter
J'onn J'onzz reveals the details of meeting Kara and Alex's father, Dr. Jeremiah Danvers, and assuming Hank H...
Episode 18
Worlds Finest
Kara gains a new ally when the lightning-fast superhero The Flash suddenly appears from an alternate universe...
Episode 19
Myriad
Kara must find a way to free her friends when Non and Indigo use mind control to turn National City’s citizens...
Episode 20
Better Angels
Supergirl is forced to do battle with an unexpected foe and must risk everything – including her life – to pre...