Diana Prince, Wonder Woman, has been investigated more into the history of the white martians secretly being on earth with Batman, Flash, and Martian Manhunter. Meanwhile, when she comes back home from the meeting, she is met by a woman by the name of Helena and her young daughter, Cassie. Helena tells Diana that she's her sister-in-law because Diana's brother, was her husband before he died, and that Cassie is a demi-god. Meanwhile, Hades comes to earth to find Diana and kill of the bloodline, meeting Helena when looking for Cassie and decides to kidnap her, Cassie finds out and uses a Wonder Woman halloween costume and becomes "Wonder Girl", helping Diana and Donna save the other children of Zeus. Donna gives Cassie the permission to become the new Wonder Girl with Diana as she spends more time with the Titans.
