When Gumdrop and Vroomer, the latest members of the Plane Scout crew, are sent on a mission by commander Gumdrop, they take off o..When Gumdrop and Vroomer, the latest members of the Plane Scout crew, are sent on a mission by commander Gumdrop, they take off on the greatest adventure of their lives. As they fly high in the clouds, they meet a genius robot that helps them learn all there is to know about amazing planes!详情