Watch Supergirl Season 2 Episode 4 online via TV Fanatic with over 1 options to watch the Supergirl S2E4 full episode. Affiliates with free and paid streaming include Amazon.

Episode Details

On Supergirl Season 2 Episode 4, Kara and Alex end up at an alien fight club while investigation an alien murder, and Supergirl starts training Mon-El.

Rating: 4.5 / 5.0 (57 Votes)
Episode Number:

Supergirl Season 2 Episode 4 Quotes

Hank: I appreciate the concern, but I'm okay.
Kara: Don't make me pout.

Alex: Danvers.
Maggie: Wanna come see a dead body?