Gyro invents a machine to envelope the nephews in a "globe of silence," but then a fire starts in Donald's back yard and the gab-muffler silences Donald and Gyro as well as the nephews.; Gyro and Scrooge use Gyro's bike-saucers as they try to remove a nesting stork from an air vent leading from Scrooge's money bin, but the stork keeps coming back.; Gyro invents a special hi-fi set to keep Grandma's cows happy, and it performs well even when it accidentally starts broadcasting piercing sound waves.; Gyro invents a machine to locate Gladstone's lost rabbit's foot, which is in the water at the bottom of a pier.; Gyro has no luck finding the curly-tailed woodpecker to photograph.; Gyro, at a restaurant, orders a flashlight battery for his helper's dinner.