The Justice League and Justice Society dealt with many many a crisis throughout their joint history together, traveling to various worlds in several dimensions. None, though, was more strange than New Genesis and Asgard, the floating cities elsewhere and elsewhen. Held seperate in other planes of existence removed from the universes containing the respective worlds, these strange lands nevertheless pulled mankind's greatest champions to their realms during their hours of greatest need. Although having its own protectors, the threats that mounted overwhelmed them.
While the realm of New Genesis, attached to Earth-One's universe and under attack by their rival Apokolips, solicited the help of both the League and Society... it was the Society alone though in a greater number that rendered aid to the Asgard linked with Earth-Two's universe. Teamed up with both worlds' greatest legends, the assembled teams proved the deciding factor in the defeat of Darkseid and Surtur along with their legions. As a result, Earth-Two was presevered as its existence had been threated due to the near intervention of Darkseid and Hitlers' manevolent machinations. And the Multiverse breathed a sigh of relief.