The members of the Umbrella Academy, a disbanded group of superheroes, reunite after the death of their adoptive father, Sir Reginald Hargreeves, a.k.a. "The Monocle." Hargreeves, an alien disguised as a famous entrepreneur, who collected the members of the Umbrella Academy shortly after their same day of birth, training them to save the world from an unspecified threat. After his death, the members carry on his plan to save the world.