Unlike the rest of the world, Kevin, Lizbeth, and Zach aren't surprised by the arrival of three spaceships from another galaxy. Kevin is the only one with the ability to communicate with the newcomers, and the entire planet is nervously watching. The alien's intentions seem friendly enough on the surface, but something doesn't feel right. In this, the final installment of the Gossamer Sphere series, the teens must bring to light their full and awe-inspiring potential to prevent earth's annihilation.