Supergirl S02E04 - Survivors

Episode Overview

Kara and Alex dive into the case of a murdered unregistered alien, which leads them to a secret underground fight club managed by Roulette. There, aliens are forced to battle to the death for the amusement of wealthy humans. As Supergirl and Martian Manhunter attempt to put an end to the brutal fights, they face an unexpected adversary. Meanwhile, Hank is excited to have discovered another Martian and makes an effort to connect with M'Gann. Additionally, Supergirl decides to mentor Mon-El, starting his training to become a hero.

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