Supergirl Season 2 Episode 4: Survivors Photos Released

The CW has released sixteen stills from this Monday's "Survivors" episode of Supergirl.

They feature Mon-El (Chris Wood) in the DEO headquarters wrapping his arm around Winslow "Winn" Schott, Jr. (Jeremy Jordan), Supergirl (Melissa Benoist) fighting a monstrous creature in an underground alien fight club, Roulette (guest star Dichen Lachman) running said fight club, and Detective Maggie Sawyer (Floriana Lima) and Alex (Chyler Leigh) dressing up and teaming up to investigate Roulette's club.

HANK AND M'GANN GET TO KNOW EACH OTHER; AN ALIEN FIGHT CLUB RUN BY ROULETTE GRABS SUPERGIRL'S ATTENTION — When Kara (Melissa Benoist) and Alex (Chyler Leigh) investigate the murder of an unregistered alien, the trail leads to an alien fight club run by Roulette (guest star Dichen Lachman), the ringmaster who commands aliens to fight in mortal combat for the entertainment of rich humans.

While trying to stop the fighting, Supergirl and Martian Manhunter find themselves up against a surprising opponent. Meanwhile, Hank (David Harewood) is thrilled to have found another Martian and tries to get to know M'Gann (guest star Sharon Leal) better. Supergirl takes Mon-El (Chris Wood) under her wing and begins to train him.

James Marshall directed the episode, written by Paula Yoo & Eric Carrasco.

Distributed worldwide by Warner Bros. International Television Distribution, SUPERGIRL is executive produced by Greg Berlanti (Arrow, The Flash), Ali Adler (The New Normal), Andrew Kreisberg (The Flash, Arrow) and Sarah Schechter (Blindspot, The Mysteries of Laura). Supergirl is based on the characters created by Jerry Siegel and Joe Shuster and appearing in DC Comics, by special arrangement with the Jerry Siegel Family.

"Survivors" episode of Supergirl will air Monday, October 31 at 8 p.m. ET/PT.