An aging Justice Society of America (consisting of the second Black Canary, Doctor Mid-Nite, the Golden Age Flash, Hawkman, Hourman, and Wildcat) is faced with the return of their worst enemy Per Degaton as he returns from suspended animation to enact a plan for world domination with his assistant Professor Zee. Meanwhile, Black Canary helps Wildcat face his greatest regrets which involved the original Black Canary.