Supergirl, Alex, and Brainiac thwart an alien attack while William investigates Kara. J'onn J'onzz and Kelly use Obsidian tech to solve a problem.
| Creator | Greg Berlanti |
|---|---|
| Actor | Melissa Benoist, Chyler Leigh, David Harewood |
| Country | United States of America |
| Production | DC Entertainment |