The ultimate X-Men ensemble fights a war for the survival of the species across two time periods as they join forces with their younger selves in an epic battle that must change the past – to save our future.

Coleman Silk is a worldly and admired professor who loses his job after unwittingly making a racial slur. To clear his name, Silk writes a book about the events with his friend and colleague Nathan Zuckerman, who in the process discovers a dark secret Silk has hidden his whole life. All the while, Silk engages in an affair with Faunia Farley, a younger woman whose tormented past threatens to unravel the layers of deception Silk has constructed.