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!

Gumdrop, Vroomer and the Plane Scout crew, are back and at it again! When commander Gumdrop sends them on the greatest adventure of their lives, it's up to Gumdrop and Vroomer to learn everything they can and then some about planes and other amazing flying machines.

The Plane Scouts embark on a new learning adventure to become Planes with Brains.