Sotto il segno dello scorpione

In a prehistoric age, a group of men called "Scorpionids" are forced to flee their homeland, destroyed by a volcanic eruption. They land on an island of peaceful farmers, but soon learn that these also live in the shadow of pending destruction by an even more powerful volcano. Instead of accepting another ship so they may proceed on their journey, the visitors try to convince the inhabitants to leave the threatened island. The young ones agree, but the elders prefer their home.