'Supergirl' Recap:'Survivors,' Season 2 Episode 4

Last Week, CW's "Supergirl" found an ally in someone she thought was the enemy. Now another member of her team will experience the delight of not being the last of his kind in "Survivors," the second season's fourth episode.

Hank is excited about finding another Martian, M'Gann, and takes her under his wing.

Supergirl is showing Mon-El the ropes, including superhero training. While looking into the murder of an unregistered alien, Alex and Maggie come across an alien fight club being run by Roulette.

Mon-El tries to get the Prince of Daxam off their planet while it's crumbling. The prince forces Mon-El to Mon-El is ready to break free and learn the wonders of PlayStation. Hank rains on that parade by telling him he can't leave the DEO yet.

Maggie calls Alex to show her a dead alien. There are clear signs of a fight between the victim and another alien. Supergirl finds herself as a third wheel to Maggie-Alex's duo.

Kara proposes to to write a story on the dead alien to Snapper but he tells her to flesh out the idea more. Hank goes to visit M'Gann. He's interested in finding out how she escaped the planet. Winn is helping Mon-El test the limits of his powers.

He's also ran tests on the alien piece for Alex. He's found a match.

Alex and Maggie go to confront the potential killer. Just as they are about to arrest him a team of men swarm in and snatch him out from under them.

Alex and Kara notice that Hank seems a little down. He tells them about M'Gann and how she rejected his offer to merge psychically. As Kara is speaking with her mother, Mon-El comes in. They bond over the loneliness. Mon-El asks if she'll escort him outside.

She says no. Maggie and Alex are going on a date...a work date but they're dressed up and holding hands so its a date. The party they're investigating is really an underground fight club that forces aliens to fight to the death.

The up and coming champion is M'Gann. Alex made the mistake of calling Supergirl to the the event. Alex and Maggie blow their covers in order to rescue her from the cage.

Alex and Kara break the news to Hank about M'Gann. Winn tells Mon-El that he has the makings of a superhero. Mon-El talks Winn into accompanying him out into the world. Kara brings the Mon-El gets Winn drunk in a bar but the fun ends when he accidently breaks an arm. Hank confronts M'Gann about how she willingly fights in the ring.

She doesn't want to remember their planet like he does. She kicks him out but not before she gives him the name of the ring leader, Veronica Sinclair AKA Roulette.

Supergirl tells Roulette that she's going to shut the fights down.

Roulette thinks she will but she won't be able to put a stop to these kinds of fights forever. Hank goes to apologize to M'Gann but she's set him up to be captured by Roulette.

Everyone realizes that Hank is missing but they fight club has been moved. Kara goes to ask Lena if she knows where the next fight will be. She gives it to her Hank refuses to fight M'Gann to the death.

She does not share his view at first. When they both refuse to kill each other, Roulette brings out the Draaga.

Using Mon-El's advise, Supergirl is able to take him down. When there's a standoff between aliens protecting Roulette and the police, Supergirl steps in to talk the aliens into giving her up.

The police are forced to let Roulette go. Alex invites Maggie out for drinks but is rejected because Maggie's girlfriend is there. Snapper approves of Kara's story and her main source, Supergirl.

The DEO has agreed to let Mon-El out under Kara's supervision. She feels like she'll finally be able to fulfill the purpose she was sent to Earth for in the first place.

Hank apologizes to M'Gann and lets her know that he'll still be there for her. When he leaves, she reveals herself as a white martian.

"Survivors" was another exciting episode of "Supergirl." The season is really drawing on Kara's need to center herself around both her personas and parallels it with the city's struggle with alien inhabitants.

Keep watching Mondays at 8pm and re-watch episodes on the CW site.

Wanna read more on this? Check these out: Supergirl Season 3 Episode 1 Review: Kara Is Angry (more); Supergirl Season 3 Might Not Add Lex Luthor And General Zod Into The Mix (more); Supergirl "Reigns" In Odette Annable As Season 3 Villain (more); Supergirl Season 2 Episode 22 Review/Recap: An Epic Finale (more).

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