A young colonist on Mars befriends a strange round creature called Willis who gets him into trouble when he goes away to school, but whose presence and friendship finally enable the colonials to negotiate a treaty with the Martians.
Kip, a high school senior, wins a space suit in a soap jingle contest and is testing it out in the backyard when he is skyjacked by a space pirate and put aboard a ship with other captives heading for a deadly encounter with the moon.