In the future, Earth is ruled by women and many of the men have fled to other planets. Ferdinand is a boy on a spaceship headed to Venus where the men are said to be plentiful. He's with his older sister, Evelyn, who decided to leave Earth in search of a husband. After Ferdinand stumbles on a stowaway named Butt Lee Brown, a battle of the sexes ensues. Satire and humor abound in this tale from William Tenn.