Supergirl Season 4 Episode 1 ‘American Alien’ Full
Kara welcomes a new cub reporter to CatCo; James and Lena argue about James’ impending indictment for acting as the vigilante Guardian; Alex and Brainy struggle to get in sync at the DEO.
Season number: 4
Episode number: 1
Air date: 14 October 2018
Previous episode: Battles Lost and Won
Next episode: Fallout