Greg is designing the perfect peridot earrings for a customer and tells the woman about the gem’s fascinating history. The peridot is regarded as a gem from outer space since it has been found in meteorites, on Mars, and on the moon, as well as on Earth after earthquakes and volcanoes. Luke and Greg take a short trip to the Kennedy Space Center to see the launch of a rocket. In Luke’s dream sequence of events, he is with Greg on a spaceship that is exploring the solar system. They visit a special planet where they meet the unusual residents. With the help of an alien princess, Luke and Greg help to stop the space villain who is harming life on that planet. Greg and Luke save a beautiful gem and diamond planet.