Relatives from the planet Drakon visit Fumé and Grisu. They ask the two to fly with them in the spaceship to Drakon. There the three-headed dragon Flamagor attacks them, and since they do not have a ray of fire, they are at his mercy. Fumé doesn't want to go, but Grisu lures him into the spaceship with a trick. After this adventure, Grisu and Fumé get into a quarrel with Count Leonard, who forbids his native children to cultivate the fields.