Poster of Episodes in Supergirl - Season 3 - Season 3

Supergirl - Season 3

Plot: As season three returns with all-new supercharged adventures this fall, Kara and team will come up against a new threat in the form of DC Worldkiller, Reign.
First Episode Aired On:
Monday, October 9 2017
7 years ago
Last Episode Aired On:
Monday, June 18 2018
6 years ago
Number of Episodes: 23