Watch Supergirl Online: Check Out Season 2 Episode 4

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Supergirl Season 2 Episode 4 was titled "Survivors."

Ready for a look at what transpired on Halloween night?

On this installmenet of the fun CW series, thrilled to have found another Martian, Hank was very determined to get to know M'Gann better.

Elsewhere during the hour, Kara and Alex took notice of an alien fight club run by Roulette while investigating an unregistered alien's murder.

And also, Supergirl stareds training Mon-El, whom she had taken under her wing.

Where did these storylines go in the end? What sort of cliffhanger did the episode end on?

Use the video featured above to watch Supergirl online and find out now.

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