Where To Stream Supergirl Season 3 Episode 20
Dark Side of the Moon
- Aired May 28, 2018
- 60 Min
- Rated 7.0
- Number 79 Of 126 Rated Episodes
Supergirl and Mon-El find a remnant of Krypton drifting deep in space. Meanwhile, Alex faces a killer from her past, and Winn ends up babysitting Ruby.