Armek, a White Martian, descends on National City intent on taking M’gann back to Mars to face her punishment as a traitor. Hank and Supergirl determine the best way to keep M’gann safe is to bring her to the DEO. However, when it is revealed that Armek shape-shifted into M’gann and is now loose in the building, the team realize he could be disguised as any one of them.
| Creator | Greg Berlanti |
|---|---|
| Actor | Melissa Benoist, Chyler Leigh, David Harewood |
| Country | United States of America |
| Production | DC Entertainment |