Archie Lee Meighan is a failing cotton gin owner who is married to Baby Doll, a 19-year old childlike beauty whose father arranged the marriage for financial reasons. As Archie awaits the arrival of Baby Doll's 20th birthday, the day that they are supposed to consummate their marriage, he faces interference from business rival Silva Vacarro, who plots to seduce Baby Doll away from Meighan.

Historical short showing how Eli Whitney (best known for the invention of the cotton gin) played a significant role in the introduction of mass production techniques to the USA in the late 18th century.