The arrival of the Umbrellas in this new timeline triggers a "Grandfather Paradox," creating a —a world-consuming ball of energy that slowly erases all of space and time. While the two academies initially clash in a violent (and occasionally hallucinatory) rivalry, they are eventually forced to unite to prevent total annihilation.
In its third season, returns to Netflix with a 10-episode arc that trades globe-trotting action for intimate character drama and a reality-bending timeline reset. After averting the 1963 apocalypse, the Hargreeves siblings return to 2019 only to find they have been replaced by the Sparrow Academy —a more disciplined, formidable version of their family. Plot & Conflict: The Kugelblitz The Umbrella Academy - Season 3