Elizabeth and Timus are negotiating with a representative of the Sorsons - a race of advanced non-humanoid aliens - to try to end the war between them and the Thargons, but their attempts are unsuccessful. Elizabeth contacts the Lab and tells her fellow Tomorrow People that the Galactic Federation is powerless to prevent the Sorsons and Thargons entering Earth's area of closed space. After the Sorsons land on the moon and begin construction of a base, the President of the United States of America sends a space-shuttle to investigate. Tim detects the arrival of the Sorson and Thargon spaceships, and John and Mike decide to jaunt up to try to stop any fighting; but the battle begins before they can act, and the American space-shuttle is caught in the middle. John and Mike save the crewmen, Evans and Ricardo, by using matter transporters to send them back to their base; however, despite contacting both fleets, they are unable to prevent the battle from ending. (thetvdb.com)