Richie Rich Inventions #23

Irona has so much gold to polish that Richie and his father turn to their robot factory to see if they can find a helper for her. Dr. Tinker suggests the X-33 would be a good gold polisher. But when the Pilfer brothers, two scientists working at the factory with less than noble intentions, make some changes, the X-33's primary motivation becomes stealing gold. Once it starts working in the Rich estate, Richie and Irona realize that something is wrong.