At this point, Grundy is freed and enlisted along with several other supervillains by the time-traveling criminal Per Degaton in his second appearance, who has traveled to 1941 to capture the Justice Society of America on the day of the attack on Pearl Harbor, hoping to change history and take over the world. Grundy encounters Green Lantern, the Flash, and Wonder Woman in Echo Park, whom Grundy knows from 1947. Grundy bests the costumed trio, and is summoned by a mysterious voice to deliver them or "pay the penalty".