While Lum is in the county seat to iron out the delays in getting the rubber samples to the government office, grandpap enters the store to talk to Abner. Grandpap, still with amnesia, and thinking he’s a vacuum cleaner salesman from Toledo, Ohio, tells about some woman troubles he is having. His easy charm has attracted aunt Charity to him.
The secret of why grandpap thinks he’s from Ohio is revealed. A note from a Toledo weighing machine. Lum returns and has pressing business to talk over with Abner. Meanwhile, Buster gets annoyed at being called grandpap, and claims to hate reading the almanac.
The report from the county seat is doubtful. The government thinks their synthetic rubber is a crackpe to idea. Some fresh samples might help, if only they knew the formula. Is it helping matters in overseeing grandpap’s safety to intercept a shipment of vacuum cleaners he ordered?