'Supergirl' Recap: Lena is Tempted By Her Dark Side After an Assassination Attempt

Supergirl has (wisely) been delving heavily into the Reign storyline lately. In this episode, titled "For Good," Supergirl takes a new direction, not necessarily a lighter episode but a very interesting one. Aliens of all kinds are basically out, and Kara barely even suits up. In their place, the conflict between Lena Luthor and Morgan Edge takes center stage, with a return from a great villain of Supergirl past.