Launchpad is terrified of making a fool of himself in front of his flying-ace family when all the McQuacks are to appear at an air show together. Launchpad is to fly Scrooge’s experimental fighter plane, the Mc-X. But when the Beagle Boys sabotage his practice efforts and put themselves forward as its test pilots, the entire McQuack clan must bond together to stop an aerial assault on Scrooge’s money bin.