Set centuries before Barry Allen becomes the Flash, the film follows Eobard Thawne, a brilliant but obsessive scientist who becomes the first being to master time travel and breach the multiverse using the Negative Speed Force. Long before the idea of “The Flash” exists, Thawne pushes beyond time itself, tearing open realities and exploring unstable universes purely to understand and control creation.
His experiments trigger catastrophic ripple effects across the multiverse, drawing the attention of an alternate-reality Kid Flash (Wally West)—a hardened survivor whose world collapses as a direct consequence of Thawne’s actions. The two speedsters clash across fractured timelines and dying universes, not as hero versus villain, but as opposing philosophies: preservation versus domination.
As Thawne continues his reckless exploration, he unknowingly plants the paradox seed that will one day lead to Barry Allen’s creation—making Thawne the indirect architect of his own future nemesis. By the end, Thawne embraces his destiny as a force beyond morality, setting the stage for his eventual obsession with the Flash, while cementing himself as the originator of multiversal chaos in the alternate multiversal dimensional reality (in DCEU)
