Oct 31, 2016 on The CW at 9:00 PM


When Kara and Alex investigate the murder of an unregistered alien, the trail leads to an alien fight club run by Roulette, the ringmaster who commands aliens to fight in mortal combat for the entertainment of rich humans. While trying to stop the fi... (more)ghting, Supergirl and Martian Manhunter find themselves up against a surprising opponent. Meanwhile, Hank is thrilled to have found another Martian and tries to get to know M'Gann better. Supergirl takes Mon-El under her wing and begins to train him.

Previous episode

Welcome to Earth
Season 2 Episode 3

Oct 24, 2016

Next episode

Season 2 Episode 5

Nov 07, 2016