Supergirl

Season 2, Episode 12

Episode Title: Luthors

Air Date: 2017-02-13

Overview:

After Metallo breaks out of prison and frees Lillian Luthor, the police blame Lena for his escape and arrest her. Despite overwhelming evidence, Kara refuses to believe her friend is guilty and fights to clear Lena’s name. Flashbacks reveal how Lena came to be a Luthor.