Supergirl › Season 3

S3 E1: Girl of Steel

Kara deals with the loss of Mon-El by focusing all her energy on being Supergirl and the mysterious new threat against National City. Alex confesses a secret to Maggie about their impending nuptials. A citizen of National City has a mysterious connection to Kara, and Lena makes a bold move.

Air date	Oct 9, 2017
Runtime	42 minutes
TMDB rating	★ 6.9/10