This week’s Supergirl is called “Survivors” and that’s the running theme in the episode. They hit you with that early as Mon-El is shown barely escaping the destruction of Daxam at the time of Krypton’s destruction. We learn that Mon was a Palace Guard, and everyone (except maybe Mon-El himself) seems to think it’s a good idea to keep him confined at DEO Headquarters for now. Especially with more of his background in this episode, I’m a bit disappointed they aren’t at least commenting on his sharing the family name with both Superman and Supergirl. Maybe they’ll get to that later. Hank then surprises everyone by leaving for “personal business.”