Supergirl is called into action when remnants of Cadmus attempt to assassinat...
Supergirl
Season 4 Episode 15: O Brother, Where Art Thou?
Secretly furloughed from prison due to failing health, Lex Luthor visits his sister Lena to seek her help finding a cure. Savvy as ever, Lena is suspicious of Lex's motives, but when she's faced with a life and death situation, she must...