An observatory in Australia reports a mysterious S.O.S. signal coming from a planet in outer space. The planet is called Kuwal (Pal), and it has been attacked by the heat creature Taron (Aron), sent there by Rodak! The King of Kuwal tells his daughter Lita (Lihza) that she must escape to Earth in a space-boat and tell the people of Earth what has happened. Tearfully, Lita leaves her father and escapes the doomed planet. Gam finds Lita and her space-boat crashed in the desert and takes the girl to Mikko and his father, Tom Mura. Rodak’s assistants report that only one survivor of Kuwal has made it to Earth, the daughter of the King, and that she may have some important documents. Rodak’s robot men go after Mikko, Gam, Tom and Lita, forcing their car off the road and over the side of a mountain, but the heroes escape without injury. Meanwhile, the temperature on Earth seems to be rising; even the water is becoming hot. Volcanoes erupt and lakes bubble with steam. Gam takes Mikko for a closer look at the erupting volcano, and there they discover Taron! Goldar and Silvar are called. Goldar attempts to defeat Taron, but the creature retreats back into the mouth of the volcano.