‘Supergirl’ Season 2 Spoilers: Armek Attacks J’onn And M’gann In Episode 11 Sneak Peek

J’onn (David Harewood) isn’t able to protect M’gann (Sharon Leal) on his own from White Martian Armek (Terrell Tilford) in a sneak peek from Season 2, episode 11 of “Supergirl.”