In "Pocket Full of Lightning," the third episode of The Umbrella Academy season 3, the Umbrella and Sparrow academies contend with a Kugelblitz threat and a failed attempt to use a time-travel briefcase. Following their conflict, the teams navigate a tense hostage situation involving the Hotel Obsidian, while Viktor Hargreeves comes out to his siblings. You can find a summary of this episode on YouTube or a list of the show's characters on Wikipedia.