Supergirl S4E21: Red Dawn
- Aired: 2019-05-12
- Time: 20:00:00
- Runtime: 60 minutes
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Overview
Supergirl and Alex go after Red Daughter, while Lena and James hunt down Ben. Brainiac-5, J'onn, and Dreamer attempt to rescue the alien prisoners, but two of them are captured and one of them is "rebooted".