Supergirl (2015)
S04E15 O Brother, Where Art Thou?
Episode Overview
Due to his deteriorating health, Lex Luthor is secretly released from prison and approaches his sister, Lena, for assistance in finding a cure. Although Lena remains cautious about Lex's intentions, she finds herself in a life-and-death dilemma that forces her to confront her feelings for him. At the same time, Supergirl and J'onn engage in a battle with Manchester Black. Additionally, James' sister Kelly arrives in town, adding another layer of complexity to the unfolding events.
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