Kim Brown / Just Jared: 'Supergirl' Trailer Introduces Jason Momoa's Lobo, Reveals Plot Details for Milly Alcock-Starrer - Watch Now! - The trailer for Milly Alcock's Supergirl is here! - Here's the logline: When an unexpected and ruthless adversary strikes too close to home, Kara Zor-El, aka Supergirl ...