Supergirl finally learns the truth about Lena while tangling with Leviathan. J’onn J’onnz makes a discovery about his brother’s whereabouts.
While a new villain is under arrest at the DEO, Supergirl uses him to try and understand who is responsible for the recent attacks. Meanwhile, Andrea and Lena think back on their tumultuous past.
On the eve of the worldwide launch of Andrea Rojas’s VR contact lenses, Kara and William team up on an investigation that exposes a terrorist plot. Kelly and Alex celebrate an anniversary, but Alex’s safety is in jeopardy.
Kara’s investigation into William Dey’s “criminal” activities results in the shocking revelation he is not who she thinks. Meanwhile, the conflict between Malefic and J’onn J’onzz reaches a boiling point.
Kara attempts to mend her relationship with Lena. J’onn J’onzz takes a deep dive into his memories while Kelly tries to help an old friend.
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.
Kara is surprised to find that CatCo has a new owner who has brought in a star reporter. New couples emerge and explore their budding relationships while J’onn J’onzz receives an unexpected visitor.