Called Into Action - Supergirl
Watch Supergirl Season 4 Episode 1
"American Alien"
Original Air Date:

On Supergirl Season 4 Episode 1 Alex and Brainy try to get in sync, James faces an indictment for the vigilante Guardian, and Supergirl is called into action.

Kara's Struggle - Supergirl
Watch Supergirl Season 3 Episode 23
"Battles Lost and Won"
Original Air Date:

On Supergirl Season 3 Episode 23, Supergirl and the team take on Serena in a battle to keep Earth away from the villains, but does everyone make it out alive?

Supergirl's Big Fight
Watch Supergirl Season 3 Episode 22
"Make It Reign"
Original Air Date:

On Supergirl Season 3 Episode 22, the truth about Serena's plan for Earth is revealed as Reign makes her grand return. Is it too late for one of them?

Kara Makes a Choice - Supergirl Season 3 Episode 21
Watch Supergirl Season 3 Episode 21
"Not Kansas"
Original Air Date:

On Supergirl Season 3 Episode 21, Kara considers a major life deicsion while J"onn discovers DEO guns have hit the streets of National City.

A Part of Krypton - Supergirl
Watch Supergirl Season 3 Episode 20
"Dark Side of the Moon"
Original Air Date:

On Supergirl Season 3 Episode 20, Lena decides how far she'll go to control Reign, Alex and Ruby are attacked, and Kara learns a part of Krypton survived.

Without the Mask - Supergirl
Watch Supergirl Season 3 Episode 19
"The Fanatical"
Original Air Date:

On Supergirl Season 3 Episode 19, a former disciple of Coville’s gives Kara and James a journal that could hold the key to figuring out how to save Sam.

Saving Ruby - Supergirl
Watch Supergirl Season 3 Episode 18
"Shelter From the Storm"
Original Air Date:

On Supergirl Season 3 Episode 18, Supergirl and Alex work together in order to keep Ruby safe when Reign begins her hunt to find and kill the girl.

A Difficult Decision - Supergirl
Watch Supergirl Season 3 Episode 17
"Trinity"
Original Air Date:

On Supergirl Season 3 Episode 17, with the Worldkillers united, Supergirl and team brace for an epic battle, and James must make a decision about he and Lena.

Lena and Sam - Supergirl
Watch Supergirl Season 3 Episode 16
"Of Two Minds"
Original Air Date:

On Supergirl Season 3 Episode 16, Supergirl and Imra must work together to stop the thrid Worldkiller, but which one of them had the best plan?

Future Fighting Techniques - Supergirl
Watch Supergirl Season 3 Episode 15
"In Search of Lost Time"
Original Air Date:

On Supergirl Season 3 Episode 15, Mon-El trains Kara in fighting techniques from the future for battling Worldkillers, while Myr’nn causes psychic disturbances.

Supergirl Quotes

A leader who caves to fear is no leader at all.

President Marsdin

Beth: You know it's true what they say, behind every great man is a strong woman.
Lena: I wouldn't know, I've never stood behind a man.