"This animated film introduces the basic economic concept of specialization of labor. Long ago when people had to do all the work that had to be done for themselves, a man made a spinning top for his son. The other fathers wanted him to make tops for their children too, but the man did not have the time. How the mad who made the top became a toymaker and made tops for all the other children, and how the other fathers each began to do one special job is the story of this film." - Summary from teacher's guide.