By their third encounter, the Scarlet Speedsters had learned quite a bit about one another's private lives, their rogues, their techniques and their need for speed... all from visiting one another's world. It was Barry's turn to visit Jay's planet once more, when he was tracing mysterious lights originating from Earth-Two. When each of the six cities on Earth-One matched those of a member of the Justice Society of America, Barry Allen donned his crimson costume and seek out new found friend Jay Garrick to see what was the origin of these electromagnetic energies that caused havok in Gotham City, Central City, Washington DC, Calvin City (soon after renamed Ivy Town) as well as two other burgs.. After facing various weird weaponry which caused both speedsters some problems, they tracked the problem to a persistent pest who had... along with other members of the Injustice Society of the World... battled Jay's team twice years ago.
Turns out, it was immortal foe Vandal Savage who ensnared various members of the Justice Society of America with said lights, all except the Flash who had been saved by his twin. After they shook off the effect's of Savage's will-sapping device, which had turned the speedsters against one another, they were able to release the rest of the Justice Society... and drag Vandal back to jail. However, he would return, again and again, to torment the twin tornados. However, it was his own desire for vengeance that caused the Justice Society to reform for a modern era once more!