An ambassador from a matriarchal planet arrives on Earth and requires the help of the Legion of Super-Heroes. The ambassador is surprised to find males leading the group and shows some disdain towards the patriarchal society. After some time, the female Legionnaires find their powers have been boosted dramatically, with Triplicate Girl creating hundreds of duplicates, Shrinking Violet growing large and Phantom Girl being able to hold things while intangible. Invisible Kid fears that it's a space virus and makes the female Legionnaires go into quarantine. It's revealed that it's the ambassador that gave them powers and also controlled them to hate males. The girls and boys fight each other, but Supergirl was able to break the control and saved the day before the ambassador pushed things too far.