Rex Nebular and the Cosmic Gender Bender

The interstellar pilot and Casanova-wannabe Rex Nebular is hired by Colonel Stone for a hefty sum to travel to a distant planet and retrieve a vase that supposedly holds great sentimental value to him. On the way Rex's ship is attacked, and he crash-lands on a mysterious planet. Further inspection reveals that this planet is inhabited solely by women; in a terrible war between sexes, the female population annihilated the male one with biological weapons, and is now artificially procreating with a device called the Gender Bender. Rex is soon captured by the planet's cruel elite forces, and must find a way to escape while preserving his virility.