In a room cluttered with randomly placed toys, a little girl named Nancy is loudly scolding Tom, who is hiding in a corner. She treats Tom like a disobedient little doll, even grabbing him, wrapping him in a diaper, and stuffing him into a crib. Faced with this domineering little mistress, even the usually swaggering Tom loses his temper and has no choice but to let Nancy have her way. Suddenly, he discovers that the milk in the bottle Nancy shoved at him tastes exceptionally good. So, this greedy fellow simply plays along, pretending to be a baby, gulping down the milk and putting on all sorts of childish acts. All of this is witnessed by the little mouse Jerry, who loudly mocks Tom and imitates his actions, infuriating Tom and making him lose his temper. A cat-and-mouse battle thus erupts... This film is the first Tom & Jerry series animated short that animator Ray Patterson worked on after moving from Disney to Warner Bros.