After many years of being way ahead of the humans on Earth, Ganymede and its people decide to take a little visit. A select group of (West) Ganymede High School’s students get to experience the study-abroad trip of a lifetime, traveling to another planet! 13 groups, containing 5 students each, get to visit various parts of Earth, doing tasks and collecting information about this interesting planet and human species. The kids of Group 9—Arsenic, Iodine, Gold, Cobalt, and Sulfur—are sent to Lemon Grove, California in America. As they learn to adapt to the new environment, they run into many problems that were not addressed when the trip was discussed.