Supergirl
Season 2 Episode 4 - Survivors
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 fighting, 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.
Episodes in Season 2
The Adventures of Supergirl
42 min
The Last Children of Krypton
42 min
Welcome to Earth
42 min
Survivors
42 min
Crossfire
42 min
Changing
42 min
The Darkest Places
42 min
Medusa (I)
43 min
Supergirl Lives
42 min
We Can Be Heroes
42 min
The Martian Chronicles
42 min
Luthors
42 min
Mr. & Mrs. Mxyzptlk
42 min
Homecoming
42 min
Exodus
42 min
Star-Crossed (I)
42 min
Distant Sun
42 min
Ace Reporter
42 min
Alex
42 min
City of Lost Children
42 min
Resist
42 min
Nevertheless, She Persisted
42 min