On Gyro's advice, Scrooge buys Duckburg savings bonds with his move to save it from the Beagle Boys, then hides the bonds in caves in the Aeolian Mountains.; Gyro, caught in the middle in a hotly contested baseball game between two Duckburg teams, invents an unhittable ball for one side and an unmissable bat for the other.; Gyro uses his new cement mixer to build a dam on Grandma's farm when a flood hits, then Grandma uses it to mix bread for flood refugees.; Gladstone recruits Gyro to help him tame a bear so that he will be crowned "king of luck," and Gyro invents a repellent that keeps the bear subdued.; Gyro invents a moose call so good that hunters fire at him.; Gyro tapes his snores, but the tape picks up an elephant's snores as well.; Gyro invents a home shoe shiner.