Supergirl S03E07, Kara, J’onn and Winn investigate a crashed spaceship detected beneath National City. They find Mon-El and occupied stasis tanks aboard. They take him back to the DEO
A Nazi regime rules the planet where an archer, Dark Arrow, is the Führer, and personally hunts the resistance forces. Dark Arrow seizes a temporal gateway from the Freedom Fighters members.
Samantha wakes up at home with no memory of being in a Kryptonian fortress, but finds she is oddly tired. A mysterious Kryptonian symbol, unknown to Kara, appears throughout National City,
Two days after Kara’s defeat by Reign, the DEO and the Legion use the latter’s technology to heal Kara from her injuries. This saves her life but she remains in a coma.
Samantha gets ready to go on a trip, leaving Alex to babysit Ruby. The DEO learns that a priestess with knowledge of Reign’s true mission is imprisoned in Fort Rozz
Kara fights an amazing metahuman burglar called Psi, who can bring out her casualties’ most profound feelings of dread, compelling Kara to battle with her recollections of Krypton’s demolition and her blame over Mon-El.
Supergirl S03E13, Lena is poisoned with cyanide in her coffee by an unknown hitman. James pursues the hitman, who is eventually shot down by an unseen sniper.