The Age of Apocalypse is an alternate timeline created by Legion after he traveled back in time and accidentally caused the death of his own father, Charles Xavier. As a result, this reality diverged into a twisted dystopia terrorized by the cruel mutant Apocalypse. Although this world attempted to heal after Magneto and his X-Men slayed Apocalypse, it was again plunged into horror when Weapon Omega ascended as Apocalypse's heir thanks to a Death Seed.
Currently, this reality is sealed off from the rest of the Multiverse as a last-ditch solution to save the Multiverse from the Exterminators, who are now trapped here.
