Max (the dog) and a young girl named Tori take the first trip to the Moon since the Apollo era. Along the way, the story sets the stage for the more sophisticated scienceof the "Big Kid Box" sidebars, which cover topics including "Phases of the Moon," "Wings in Space?,", and "Frisbees and CurveBalls of the Moon"- all thoughtfully explained so that grownups and children can learn together about science. Toward the end, Max and Tori's trip proves so inspiring to epople back on Earth that all the nations of the world come together to build a great Moon colony from which "the beautiful views of Earth from the Moon made everyone realizethat we all share a smalland precious planet."