Traveling 1000 years into the future, the Flash of Earth-One... Barry Allen... was finally able to locate his wife Iris. Having been negatively charged with radiation that would react to the Flash's superspeed aura in a dire way to their universe, Iris had been kept from her husband first by first being transported to Earth-Two where that Flash... Jay Garrick... and his ally Doctor Fate tried to cure her. Failing in that, Iris ended up in her parent's era of the 30th century, still plagued with the toxic energy implanted in her by Professor Zoom... the Reverse-Flash. Zoom's ploy was to end up marrying Iris in another time... however his arch-foe Barry- Flash succeeded in finding the means to rectify the situation. Neveretheless, Zoom would not stop in his schemes to obtain Iris.
Just as the case of Iris Allen's disappearence had wrapped up, another threat occured to Jay-Flash's wife Joan Garrick. His old opponent, the Thorn, had attempted to use Joan as a hostage to lure the Scarlet Speedster into a trap. Like Zoom, the Thorn possessed both cunning and superspeed in the form of a spinning technique. However, also like Zoom, she was easily vanquished by the Fastest Man Alive on her Earth. Nevertheless, a greater danger laid ahead for Joan as well.