![Supergirl Season 3 Episode 4 Supergirl Season 3 Episode 4](https://image.tmdb.org/t/p/w185/zsaiq8ZclPuneuN7loLEbsh1ANJ.jpg)
Supergirl Season 3 Episode 4
Kara investigates a secretive new group whose leader, Thomas Coville, has a mysterious connection to Supergirl. Meanwhile, Samantha feels like she’s letting Ruby down, and J’onn confesses an old secret.
Serie: Supergirl
Director: Jesse Warn
Guest Star: Alex Zahara, Anjali Jay, Cameron Forbes, Carl Lumbly, Chad Lowe, David Carzell, Emma Tremblay, Erica Durance, Floriana Lima, Hyuma Frankowski, Khaira Ledeyo, Meghan Gardiner, Nick Fontaine, Sage Brocklebank, Sofia Vassilieva