In 2034, Thawne is captured and imprisoned in Iron Heights Penitentiary, where he is routinely tortured by a corrupt prison guard while a dagger that had belonged to the metahuman serial killer Cicada dampens his super-speed. In 2049, Nora West-Allen seeks Thawne's help. Thawne becomes Nora's mentor and claims that he seeks to create a more noble legacy for himself before he's executed for his crimes. However, he actually plans to destroy Cicada's dagger and escape Iron Heights so he sends Nora to travel back in time and help Barry defeat Cicada, ultimately resulting in the dagger transported to the Mirrorverse which frees him moments before his execution. He briefly fights Barry, Nora, and Team Flash before Nora begins fading from existence because of the changes in the timeline while Thawne makes his escape.