Season 01
Season 02
Season 03
Season 04
Season 05
Supergirl's powers are put to the test when one of Superman's most formidable enemies, Reactron, shows up in National City to take her down. In the meantime, Cat makes plans to run an expose on Supergirl.
All Episodes - S01
EPS11
A Senator who opposes alien presence on Earth comes to National City to speak. And it's while she's speaking that an alien appears and grabs her. That's when the DEO show ...
EPS13
A parasitic alien attaches itself to Kara and traps her in a world where Krypton was never destroyed, leaving Alex, Hank and the DEO to fend off a Kryptonian attack witho ...