Season 3

Season 3, Episode 1 - Girl of Steel

3.0 4 x
Kara deals with the loss of Mon-El by focusing her energy on being Supergirl and concentrating on a mysterious new threat. A citizen of National City has a connection to Kara.
Season 2

Season 2, Episode 1 - The Adventures of Supergirl

4.0 13 x
Supergirl and Clark team up to stop a new threat emerging in National City; Alex feels left out while Kara's family stays in town; a pod comes crashing down to earth.
Season 1

Season 1, Episode 1 - Pilot

3.0 24 x
After keeping her powers a secret for 12 years, Kara Zor-El, Superman's cousin, decides to embrace her abilities and be a hero.