American Alien - SupergirlDiving back into reporting, Kara welcomes a new cub reporter to CatCo. Meanwhile, James and Lena argue about James’ impending indictment for acting as the vigilante Guardian, while Alex and Brainy struggle to get in sync at the DEO.
Battles Lost and Won - SupergirlSupergirl and team take on Serena in an epic battle for Earth.
Legion of Superheroes - SupergirlStruggling to heal from her injuries inflicted by Reign, Supergirl remains in a dreamlike state, unable to be reached.
Damage - SupergirlWhen multiple children get sick from lead poisoning, Morgan Edge points the finger at Lena and blames her creation of the lead bomb she made to save National City from the Daxamites.