Supergirl › Season 4

S4 E15: 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 decide how she truly feels about her brother. Meanwhile, Supergirl and J'onn face off against Manchester Black. James' sister Kelly comes to town.

Air date	Mar 17, 2019
Runtime	42 minutes
TMDB rating	★ 6.8/10